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color: black;} .source-xml .re2 {font-weight: bold; color: black;} /*]]>*/ </style> <style type="text/css">/*<![CDATA[*/ @import "/web/20081217025512cs_/http://en.wikipedia.org/w/index.php?title=MediaWiki:Geshi.css&usemsgcache=yes&action=raw&ctype=text/css&smaxage=2678400"; /*]]>*/ </style> <script type="text/javascript" src="/web/20081217025512js_/http://en.wikipedia.org/w/index.php?title=-&action=raw&gen=js&useskin=monobook"><!-- site js --></script> </head> <body class="mediawiki ltr ns-0 ns-subject page-RSS skin-monobook"> <div id="globalWrapper"> <div id="column-content"> <div id="content"> <a name="top" id="top"></a> <div id="siteNotice"><script type="text/javascript">if (wgNotice != '') document.writeln(wgNotice);</script></div> <h1 class="firstHeading">RSS</h1> <div id="bodyContent"> <h3 id="siteSub">From Wikipedia, the free encyclopedia</h3> <div id="contentSub"> (Redirected from <a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS_(file_format)&redirect=no" title="RSS (file format)">RSS (file format)</a>)</div> <div id="jump-to-nav">Jump to: <a href="#column-one">navigation</a>, <a href="#searchInput">search</a></div> <!-- start content --> <div class="dablink">For other meanings of RSS, see <a href="/web/20081217025512/http://en.wikipedia.org/wiki/RSS_(disambiguation)" title="RSS (disambiguation)">RSS (disambiguation)</a>.</div> <div class="dablink">For RSS feeds from Wikipedia, see <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Wikipedia:Syndication" title="Wikipedia:Syndication">Wikipedia:Syndication</a>.</div> <table class="infobox" cellspacing="5" style="width: 22em; text-align: left; font-size: 88%; line-height: 1.5em;"> <caption class="" style="font-size: 125%; font-weight: bold;">RSS</caption> <tr> <td colspan="2" class="" style="text-align:center;"><a href="/web/20081217025512/http://en.wikipedia.org/wiki/File:Feed-icon.svg" class="image" title="The Firefox and Internet Explorer 7 RSS Feed icon."><img alt="The Firefox and Internet Explorer 7 RSS Feed icon." src="https://web.archive.org/web/20081217025512im_/http://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Feed-icon.svg/100px-Feed-icon.svg.png" width="100" height="100" border="0"/></a></td> </tr> <tr> <td colspan="2" class="" style="text-align:center;"><br/> The RSS logo</td> </tr> <tr> <th style=""><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Filename_extension" title="Filename extension">Filename extension</a></th> <td class="" style=""><code><tt>.rss</tt>, <tt>.xml</tt></code></td> </tr> <tr> <th style=""><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Internet_media_type" title="Internet media type">Internet media type</a></th> <td class="" style=""><code>application/rss+xml (Registration Being Prepared)<sup id="cite_ref-0" class="reference"><a href="#cite_note-0" title=""><span>[</span>1<span>]</span></a></sup></code></td> </tr> <tr> <th style="">Extended from</th> <td class="" style=""><a href="/web/20081217025512/http://en.wikipedia.org/wiki/XML" title="XML">XML</a></td> </tr> </table> <p><b>RSS</b> is a family of <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Web_feed" title="Web feed">Web feed</a> formats used to publish frequently updated works—such as <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Blog" title="Blog">blog</a> entries, news headlines, audio, and video—in a standardized format.<sup id="cite_ref-Netsc99_1-0" class="reference"><a href="#cite_note-Netsc99-1" title=""><span>[</span>2<span>]</span></a></sup> An RSS document (which is called a "feed", "web feed",<sup id="cite_ref-GuardWF_2-0" class="reference"><a href="#cite_note-GuardWF-2" title=""><span>[</span>3<span>]</span></a></sup> or "channel") includes full or summarized text, plus <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Metadata" title="Metadata">metadata</a> such as publishing dates and authorship. Web feeds benefit publishers by letting them syndicate content automatically. They benefit readers who want to subscribe to timely updates from favored websites or to aggregate feeds from many sites into one place. RSS feeds can be read using <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Software" title="Software" class="mw-redirect">software</a> called an "RSS reader", "feed reader", or "<a href="/web/20081217025512/http://en.wikipedia.org/wiki/Aggregator" title="Aggregator">aggregator</a>", which can be <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Web_application" title="Web application">web-based</a> or <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Application_software" title="Application software">desktop-based</a>. A standardized <a href="/web/20081217025512/http://en.wikipedia.org/wiki/XML" title="XML">XML</a> file format allows the information to be published once and viewed by many different programs. The user subscribes to a feed by entering the feed's <a href="/web/20081217025512/http://en.wikipedia.org/wiki/URI" title="URI" class="mw-redirect">URI</a> (often referred to informally as a "<a href="/web/20081217025512/http://en.wikipedia.org/wiki/URL" title="URL" class="mw-redirect">URL</a>", although <a href="/web/20081217025512/http://en.wikipedia.org/wiki/URI#Technical_view" title="URI" class="mw-redirect">technically</a>, those two terms are <a href="/web/20081217025512/http://en.wikipedia.org/wiki/URI#Relationship_to_URL_and_URN" title="URI" class="mw-redirect">not exactly synonymous</a>) into the reader or by clicking an RSS icon in a browser that initiates the subscription process. The RSS reader checks the user's subscribed feeds regularly for new work, downloads any updates that it finds, and provides a <a href="/web/20081217025512/http://en.wikipedia.org/wiki/User_interface" title="User interface">user interface</a> to monitor and read the feeds.</p> <p>RSS formats are specified using <a href="/web/20081217025512/http://en.wikipedia.org/wiki/XML" title="XML">XML</a>, a generic specification for the creation of data formats. Although RSS formats have evolved since March 1999,<sup id="cite_ref-Qstart_3-0" class="reference"><a href="#cite_note-Qstart-3" title=""><span>[</span>4<span>]</span></a></sup> the RSS icon ("<a href="/web/20081217025512/http://en.wikipedia.org/wiki/File:Feed-icon.svg" class="image" title="Feed-icon.svg"><img alt="" src="https://web.archive.org/web/20081217025512im_/http://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Feed-icon.svg/16px-Feed-icon.svg.png" width="16" height="16" border="0"/></a>") first gained widespread use between 2005 and 2006.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4" title=""><span>[</span>5<span>]</span></a></sup></p> <table id="toc" class="toc" summary="Contents"> <tr> <td> <div id="toctitle"> <h2>Contents</h2> </div> <ul> <li class="toclevel-1"><a href="#Initials"><span class="tocnumber">1</span> <span class="toctext">Initials</span></a> <ul> <li class="toclevel-2"><a href="#Confusion_between_Web_feed_and_RSS"><span class="tocnumber">1.1</span> <span class="toctext">Confusion between Web feed and RSS</span></a></li> </ul> </li> <li class="toclevel-1"><a href="#History"><span class="tocnumber">2</span> <span class="toctext">History</span></a></li> <li class="toclevel-1"><a href="#Variants"><span class="tocnumber">3</span> <span class="toctext">Variants</span></a></li> <li class="toclevel-1"><a href="#Modules"><span class="tocnumber">4</span> <span class="toctext">Modules</span></a></li> <li class="toclevel-1"><a href="#BitTorrent_and_RSS"><span class="tocnumber">5</span> <span class="toctext">BitTorrent and RSS</span></a></li> <li class="toclevel-1"><a href="#Examples"><span class="tocnumber">6</span> <span class="toctext">Examples</span></a> <ul> <li class="toclevel-2"><a href="#RSS_1.0"><span class="tocnumber">6.1</span> <span class="toctext">RSS 1.0</span></a></li> <li class="toclevel-2"><a href="#RSS_2.0"><span class="tocnumber">6.2</span> <span class="toctext">RSS 2.0</span></a></li> <li class="toclevel-2"><a href="#Including_in_XHTML"><span class="tocnumber">6.3</span> <span class="toctext">Including in XHTML</span></a></li> </ul> </li> <li class="toclevel-1"><a href="#See_also"><span class="tocnumber">7</span> <span class="toctext">See also</span></a> <ul> <li class="toclevel-2"><a href="#Mashup_creators"><span class="tocnumber">7.1</span> <span class="toctext">Mashup creators</span></a></li> </ul> </li> <li class="toclevel-1"><a href="#References"><span class="tocnumber">8</span> <span class="toctext">References</span></a></li> <li class="toclevel-1"><a href="#External_links"><span class="tocnumber">9</span> <span class="toctext">External links</span></a> <ul> <li class="toclevel-2"><a href="#Specifications"><span class="tocnumber">9.1</span> <span class="toctext">Specifications</span></a></li> <li class="toclevel-2"><a href="#Articles"><span class="tocnumber">9.2</span> <span class="toctext">Articles</span></a></li> </ul> </li> </ul> </td> </tr> </table> <script type="text/javascript"> //<![CDATA[ if (window.showTocToggle) { var tocShowText = "show"; var tocHideText = "hide"; showTocToggle(); } //]]> </script> <p><a name="Initials" id="Initials"></a></p> <h2><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=1" title="Edit section: Initials">edit</a>]</span> <span class="mw-headline">Initials</span></h2> <p>The initials "RSS" are used to refer to the following formats:</p> <ul> <li><b>Rich Site Summary</b> (RSS 0.91)</li> <li><b><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework">RDF</a> Site Summary</b> (RSS 0.9 and 1.0)</li> <li><b>Really Simple Syndication</b> (RSS 2.0)</li> </ul> <p><a name="Confusion_between_Web_feed_and_RSS" id="Confusion_between_Web_feed_and_RSS"></a></p> <h3><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=2" title="Edit section: Confusion between Web feed and RSS">edit</a>]</span> <span class="mw-headline">Confusion between <i>Web feed</i> and <i>RSS</i></span></h3> <p>The term "RSS" (Really Simple Syndication) is still sometimes used to refer to <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Web_feed" title="Web feed">web feeds</a> in general, including web feeds with a format different than RSS. For example, the <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Blogspace" title="Blogspace" class="mw-redirect">Blogspace</a> description of using web feeds in an aggregator is headlined "RSS info" and "RSS readers" even though its first sentence makes clear the inclusion of the <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Atom_(standard)" title="Atom (standard)">Atom</a> format: "RSS and Atom files provide news updates from a website in a simple form for your computer. " <sup id="cite_ref-5" class="reference"><a href="#cite_note-5" title=""><span>[</span>6<span>]</span></a></sup></p> <p><a name="History" id="History"></a></p> <h2><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=3" title="Edit section: History">edit</a>]</span> <span class="mw-headline">History</span></h2> <p>The RSS formats were preceded by several attempts at web syndication that did not achieve widespread popularity. The basic idea of restructuring information about websites goes back to as early as 1995, when <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Ramanathan_V._Guha" title="Ramanathan V. Guha">Ramanathan V. Guha</a> and others in <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Apple_Computer" title="Apple Computer" class="mw-redirect">Apple Computer</a>'s Advanced Technology Group developed the <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Meta_Content_Framework" title="Meta Content Framework">Meta Content Framework</a>.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6" title=""><span>[</span>7<span>]</span></a></sup> For a more detailed discussion of these early developments, see the <a href="/web/20081217025512/http://en.wikipedia.org/wiki/History_of_web_syndication_technology" title="History of web syndication technology">history of web syndication technology</a>.</p> <p>RDF Site Summary, the first version of RSS, was created by <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Ramanathan_V._Guha" title="Ramanathan V. Guha">Guha</a> at <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Netscape_Communications_Corporation" title="Netscape Communications Corporation" class="mw-redirect">Netscape</a> in March 1999 for use on the My.Netscape.Com portal. This version became known as RSS 0.9.<sup id="cite_ref-Qstart_3-1" class="reference"><a href="#cite_note-Qstart-3" title=""><span>[</span>4<span>]</span></a></sup> In July 1999, <a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=Dan_Libby&action=edit&redlink=1" class="new" title="Dan Libby (page does not exist)">Dan Libby</a> of Netscape produced a new version, RSS 0.91,<sup id="cite_ref-Netsc99_1-1" class="reference"><a href="#cite_note-Netsc99-1" title=""><span>[</span>2<span>]</span></a></sup> which simplified the format by removing <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework">RDF</a> elements and incorporating elements from <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Dave_Winer" title="Dave Winer">Dave Winer</a>'s scriptingNews syndication format.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7" title=""><span>[</span>8<span>]</span></a></sup> Libby also renamed RSS "Rich Site Summary" and outlined further development of the format in a "futures document".<sup id="cite_ref-8" class="reference"><a href="#cite_note-8" title=""><span>[</span>9<span>]</span></a></sup></p> <p>This would be Netscape's last participation in RSS development for eight years. As RSS was being embraced by web publishers who wanted their feeds to be used on My.Netscape.Com and other early RSS portals, Netscape dropped RSS support from My.Netscape.Com in April 2001 during new owner AOL's restructuring of the company, also removing documentation and tools that supported the format.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9" title=""><span>[</span>10<span>]</span></a></sup></p> <p>Two entities emerged to fill the void, with neither Netscape's help nor approval: The <a href="/web/20081217025512/http://en.wikipedia.org/wiki/RSS-DEV_Working_Group" title="RSS-DEV Working Group">RSS-DEV Working Group</a> and Winer, whose <a href="/web/20081217025512/http://en.wikipedia.org/wiki/UserLand_Software" title="UserLand Software">UserLand Software</a> had published some of the first publishing tools outside of Netscape that could read and write RSS.</p> <p>Winer published a modified version of the RSS 0.91 specification on the UserLand website, covering how it was being used in his company's products, and claimed copyright to the document.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10" title=""><span>[</span>11<span>]</span></a></sup> A few months later, UserLand filed a U.S. trademark registration for RSS, but failed to respond to a <a href="/web/20081217025512/http://en.wikipedia.org/wiki/USPTO" title="USPTO" class="mw-redirect">USPTO</a> trademark examiner's request and the request was rejected in December 2001.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11" title=""><span>[</span>12<span>]</span></a></sup></p> <p>The <a href="/web/20081217025512/http://en.wikipedia.org/wiki/RSS-DEV_Working_Group" title="RSS-DEV Working Group">RSS-DEV Working Group</a>, a project whose members included Guha and representatives of <a href="/web/20081217025512/http://en.wikipedia.org/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a> and Moreover, produced RSS 1.0 in December 2000.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12" title=""><span>[</span>13<span>]</span></a></sup> This new version, which reclaimed the name RDF Site Summary from RSS 0.9, reintroduced support for RDF and added <a href="/web/20081217025512/http://en.wikipedia.org/wiki/XML_namespaces" title="XML namespaces" class="mw-redirect">XML namespaces</a> support, adopting elements from standard metadata vocabularies such as <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Dublin_Core" title="Dublin Core">Dublin Core</a>.</p> <p>In December 2000, Winer released RSS 0.92<sup id="cite_ref-13" class="reference"><a href="#cite_note-13" title=""><span>[</span>14<span>]</span></a></sup> a minor set of changes aside from the introduction of the enclosure element, which permitted audio files to be carried in RSS feeds and helped spark <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Podcast" title="Podcast">podcasting</a>. He also released drafts of RSS 0.93 and RSS 0.94 that were subsequently withdrawn.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14" title=""><span>[</span>15<span>]</span></a></sup></p> <p>In September 2002, Winer released a major new version of the format, RSS 2.0, that redubbed its initials Really Simple Syndication. RSS 2.0 removed the <i>type</i> attribute added in the RSS 0.94 draft and added support for namespaces.</p> <p>Because neither Winer nor the RSS-DEV Working Group had Netscape's involvement, they could not make an official claim on the RSS name or format. This has fueled ongoing controversy in the syndication development community as to which entity was the proper publisher of RSS.</p> <p>One product of that contentious debate was the creation of an alternative syndication format, Atom, that began in June 2003.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15" title=""><span>[</span>16<span>]</span></a></sup> The Atom syndication format, whose creation was in part motivated by a desire to get a clean start free of the issues surrounding RSS, has been adopted as <a href="/web/20081217025512/http://en.wikipedia.org/wiki/IETF" title="IETF" class="mw-redirect">IETF</a> Proposed Standard <a href="https://web.archive.org/web/20081217025512/http://tools.ietf.org/html/rfc4287" class="external" title="http://tools.ietf.org/html/rfc4287">RFC 4287</a>.</p> <p>In July 2003, Winer and UserLand Software assigned the copyright of the RSS 2.0 specification to Harvard's <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Harvard_Law_School" title="Harvard Law School">Berkman Center for the Internet & Society</a>, where he had just begun a term as a visiting fellow.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16" title=""><span>[</span>17<span>]</span></a></sup> At the same time, Winer launched the <a href="/web/20081217025512/http://en.wikipedia.org/wiki/RSS_Advisory_Board" title="RSS Advisory Board">RSS Advisory Board</a> with <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Brent_Simmons" title="Brent Simmons" class="mw-redirect">Brent Simmons</a> and <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Jon_Udell" title="Jon Udell">Jon Udell</a>, a group whose purpose was to maintain and publish the specification and answer questions about the format.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17" title=""><span>[</span>18<span>]</span></a></sup></p> <p>In December 2005, the Microsoft Internet Explorer team<sup id="cite_ref-18" class="reference"><a href="#cite_note-18" title=""><span>[</span>19<span>]</span></a></sup> and Outlook team<sup id="cite_ref-19" class="reference"><a href="#cite_note-19" title=""><span>[</span>20<span>]</span></a></sup> announced on their blogs that they were adopting the feed icon first used in the <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Mozilla_Firefox" title="Mozilla Firefox">Mozilla Firefox</a> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Web_Browser" title="Web Browser" class="mw-redirect">browser</a> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/File:Feed-icon.svg" class="image" title="Feed-icon.svg"><img alt="" src="https://web.archive.org/web/20081217025512im_/http://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Feed-icon.svg/16px-Feed-icon.svg.png" width="16" height="16" border="0"/></a>. A few months later, <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Opera_Software" title="Opera Software">Opera Software</a> followed suit. This effectively made the orange square with white radio waves the industry standard for RSS and Atom feeds, replacing the large variety of icons and text that had been used previously to identify syndication data.</p> <p>In January 2006, <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Rogers_Cadenhead" title="Rogers Cadenhead">Rogers Cadenhead</a> relaunched the RSS Advisory Board without Dave Winer's participation, with a stated desire to continue the development of the RSS format and resolve ambiguities. In June 2007, the board revised their version of the specification to confirm that namespaces may extend core elements with namespace attributes, as Microsoft has done in Internet Explorer 7. According to their view, a difference of interpretation left publishers unsure of whether this was permitted or forbidden.</p> <p><a name="Variants" id="Variants"></a></p> <h2><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=4" title="Edit section: Variants">edit</a>]</span> <span class="mw-headline">Variants</span></h2> <p>As noted above, there are several different versions of RSS, falling into two major branches (RDF and 2.*). The RDF, or RSS 1.* branch includes the following versions:</p> <ul> <li>RSS 0.90 was the original Netscape RSS version. This RSS was called <i><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework">RDF</a> Site Summary</i>, but was based on an early working draft of the RDF standard, and was not compatible with the final RDF Recommendation.</li> <li>RSS 1.0 is an open format by the <a href="/web/20081217025512/http://en.wikipedia.org/wiki/RSS-DEV_Working_Group" title="RSS-DEV Working Group">RSS-DEV Working Group</a>, again standing for <i>RDF Site Summary</i>. RSS 1.0 is an RDF format like RSS 0.90, but not fully compatible with it, since 1.0 is based on the final RDF 1.0 Recommendation.</li> <li>RSS 1.1 is also an open format and is intended to update and replace RSS 1.0. The specification is an independent draft not supported or endorsed in any way by the RSS-Dev Working Group or any other organization.</li> </ul> <p>The RSS 2.* branch (initially UserLand, now Harvard) includes the following versions:</p> <ul> <li>RSS 0.91 is the simplified RSS version released by Netscape, and also the version number of the simplified version originally championed by <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Dave_Winer" title="Dave Winer">Dave Winer</a> from Userland Software. The Netscape version was now called <i>Rich Site Summary</i>; this was no longer an RDF format, but was relatively easy to use.</li> <li>RSS 0.92 through 0.94 are expansions of the RSS 0.91 format, which are mostly compatible with each other and with Winer's version of RSS 0.91, but are not compatible with RSS 0.90. In all Userland RSS 0.9x specifications, RSS was no longer an acronym.</li> <li>RSS 2.0.1 has the internal version number 2.0. RSS 2.0.1 was proclaimed to be "frozen", but still updated shortly after release without changing the version number. RSS now stood for <i>Really Simple Syndication</i>. The major change in this version is an explicit extension mechanism using XML namespaces.<sup id="cite_ref-W3C_REC_XML_Namespace_20-0" class="reference"><a href="#cite_note-W3C_REC_XML_Namespace-20" title=""><span>[</span>21<span>]</span></a></sup></li> </ul> <p>For the most part, later versions in each branch are <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Backward_compatibility" title="Backward compatibility">backward-compatible</a> with earlier versions (aside from non-conformant RDF syntax in 0.90), and both versions include properly documented extension mechanisms using XML Namespaces, either directly (in the 2.* branch) or through RDF (in the 1.* branch). Most syndication software supports both branches. <a href="https://web.archive.org/web/20081217025512/http://diveintomark.org/archives/2004/02/04/incompatible-rss" class="external text" title="http://diveintomark.org/archives/2004/02/04/incompatible-rss" rel="nofollow">"The Myth of RSS Compatibility"</a>, an article written in 2004 by RSS critic and <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Atom_(standard)" title="Atom (standard)">Atom</a> advocate <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Mark_Pilgrim" title="Mark Pilgrim">Mark Pilgrim</a>, discusses RSS version compatibility issues in more detail.</p> <p>The extension mechanisms make it possible for each branch to track innovations in the other. For example, the RSS 2.* branch was the first to support <a href="/web/20081217025512/http://en.wikipedia.org/wiki/RSS_Enclosures" title="RSS Enclosures" class="mw-redirect">enclosures</a>, making it the current leading choice for podcasting, and as of 2005<sup class="plainlinks asof-tag update" style="display:none;"><a href="https://web.archive.org/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit" class="external text" title="http://en.wikipedia.org/w/index.php?title=RSS&action=edit" rel="nofollow">[update]</a></sup> is the format supported for that use by <a href="/web/20081217025512/http://en.wikipedia.org/wiki/ITunes" title="ITunes">iTunes</a> and other podcasting software; however, an enclosure extension is now available for the RSS 1.* branch, <a href="https://web.archive.org/web/20081217025512/http://www.xs4all.nl/~foz/mod_enclosure.html" class="external text" title="http://www.xs4all.nl/~foz/mod_enclosure.html" rel="nofollow">mod_enclosure</a>. Likewise, the RSS 2.* core specification does not support providing full-text in addition to a synopsis, but the RSS 1.* markup can be (and often is) used as an extension. There are also several common outside extension packages available, including a new proposal from <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Microsoft" title="Microsoft">Microsoft</a> for use in <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Internet_Explorer" title="Internet Explorer">Internet Explorer</a> 7.</p> <p>The most serious compatibility problem is with HTML markup. Userland's RSS reader—generally considered as the reference implementation—did not originally filter out <a href="/web/20081217025512/http://en.wikipedia.org/wiki/HTML" title="HTML">HTML</a> markup from feeds. As a result, publishers began placing HTML markup into the titles and descriptions of items in their RSS feeds. This behavior has become expected of readers, to the point of becoming a <a href="/web/20081217025512/http://en.wikipedia.org/wiki/De_facto" title="De facto">de facto</a> standard, though there is still some inconsistency in how software handles this markup, particularly in titles. The RSS 2.0 specification was later updated to include examples of entity-encoded HTML; however, all prior plain text usages remain valid.</p> <p>As of January 2007<sup class="plainlinks asof-tag update" style="display:none;"><a href="https://web.archive.org/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit" class="external text" title="http://en.wikipedia.org/w/index.php?title=RSS&action=edit" rel="nofollow">[update]</a></sup>, tracking data from www.syndic8.com indicates that the three main versions of RSS in current use are 0.91, 1.0, and 2.0. Of these, RSS 0.91 accounts for 13 percent of worldwide RSS usage and RSS 2.0 for 67 percent, while RSS 1.0 has a 17 percent share.<sup id="cite_ref-21" class="reference"><a href="#cite_note-21" title=""><span>[</span>22<span>]</span></a></sup> These figures, however, do not include usage of the rival web feed format <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Atom_(standard)" title="Atom (standard)">Atom</a>. As of August 2008<sup class="plainlinks asof-tag update" style="display:none;"><a href="https://web.archive.org/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit" class="external text" title="http://en.wikipedia.org/w/index.php?title=RSS&action=edit" rel="nofollow">[update]</a></sup>, the syndic8.com website is indexing 546,069 total feeds, of which 86,496 were some dialect of Atom and 438,102 were some dialect of RSS.<sup id="cite_ref-22" class="reference"><a href="#cite_note-22" title=""><span>[</span>23<span>]</span></a></sup></p> <p><a name="Modules" id="Modules"></a></p> <h2><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=5" title="Edit section: Modules">edit</a>]</span> <span class="mw-headline">Modules</span></h2> <p>The primary objective of all RSS modules is to extend the basic <a href="/web/20081217025512/http://en.wikipedia.org/wiki/XML" title="XML">XML</a> schema established for more robust syndication of content. This inherently allows for more diverse, yet standardized, transactions without modifying the core RSS specification.</p> <p>To accomplish this extension, a tightly controlled vocabulary (in the RSS world, "module"; in the XML world, "schema") is declared through an <a href="/web/20081217025512/http://en.wikipedia.org/wiki/XML_namespace" title="XML namespace">XML namespace</a> to give names to concepts and relationships between those concepts.</p> <p>Some RSS 2.0 modules with established namespaces are:</p> <ul> <li><a href="https://web.archive.org/web/20081217025512/http://shopping.discovery.com/erss/" class="external text" title="http://shopping.discovery.com/erss/" rel="nofollow">Ecommerce RSS 2.0 Module</a></li> <li><a href="https://web.archive.org/web/20081217025512/http://search.yahoo.com/mrss" class="external text" title="http://search.yahoo.com/mrss" rel="nofollow">Media RSS 2.0 Module</a></li> <li><a href="https://web.archive.org/web/20081217025512/http://www.opensearch.org/Specifications/OpenSearch/1.1" class="external text" title="http://www.opensearch.org/Specifications/OpenSearch/1.1" rel="nofollow">OpenSearch RSS 2.0 Module</a></li> </ul> <p><a name="BitTorrent_and_RSS" id="BitTorrent_and_RSS"></a></p> <h2><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=6" title="Edit section: BitTorrent and RSS">edit</a>]</span> <span class="mw-headline">BitTorrent and RSS</span></h2> <p>Several <a href="/web/20081217025512/http://en.wikipedia.org/wiki/BitTorrent_(protocol)" title="BitTorrent (protocol)">BitTorrent</a>-based <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Peer-to-peer" title="Peer-to-peer">peer-to-peer</a> applications also support RSS. Such feeds (also known as <i>Torrent/RSS-es</i> or <i>Torrentcasts</i>) allow client applications to download files automatically from the moment, the RSS reader detects them (also known as <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Broadcatching" title="Broadcatching">Broadcatching</a>).</p> <p><a name="Examples" id="Examples"></a></p> <h2><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=7" title="Edit section: Examples">edit</a>]</span> <span class="mw-headline">Examples</span></h2> <p><a name="RSS_1.0" id="RSS_1.0"></a></p> <h3><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=8" title="Edit section: RSS 1.0">edit</a>]</span> <span class="mw-headline">RSS 1.0</span></h3> <p>The following is an example of an RSS Feed 1.0 file (the quoted strings are in red font).</p> <div dir="ltr" style="text-align: left;"> <pre class="source-xml"> <span class="sc3"><span class="re1"><?xml</span> <span class="re0">version</span>=<span class="st0">"1.0"</span><span class="re2">?></span></span> <span class="sc3"><span class="re1"><rdf:RDF</span> <span class="re0">xmlns:rdf</span>=<span class="st0">"http://www.w3.org/1999/02/22-rdf-syntax-ns#"</span> <span class="re0">xmlns</span>=<span class="st0">"http://purl.org/rss/1.0/"</span><span class="re2">></span></span> <span class="sc3"><span class="re1"><channel</span> <span class="re0">rdf:about</span>=<span class="st0">"http://www.xml.com/xml/news.rss"</span><span class="re2">></span></span> <span class="sc3"><span class="re1"><title<span class="re2">></span></span></span>XML.com<span class="sc3"><span class="re1"></title<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><link<span class="re2">></span></span></span>http://xml.com/pub<span class="sc3"><span class="re1"></link<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><description<span class="re2">></span></span></span> XML.com features a rich mix of information and services for the XML community. <span class="sc3"><span class="re1"></description<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><image</span> <span class="re0">rdf:resource</span>=<span class="st0">"http://xml.com/universal/images/xml_tiny.gif"</span> <span class="re2">/></span></span> <span class="sc3"><span class="re1"><items<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><rdf:Seq<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><rdf:li</span> <span class="re0">rdf:resource</span>=<span class="st0">"http://xml.com/pub/2000/08/09/xslt/xslt.html"</span> <span class="re2">/></span></span> <span class="sc3"><span class="re1"><rdf:li</span> <span class="re0">rdf:resource</span>=<span class="st0">"http://xml.com/pub/2000/08/09/rdfdb/index.html"</span> <span class="re2">/></span></span> <span class="sc3"><span class="re1"></rdf:Seq<span class="re2">></span></span></span> <span class="sc3"><span class="re1"></items<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><textinput</span> <span class="re0">rdf:resource</span>=<span class="st0">"http://search.xml.com"</span> <span class="re2">/></span></span> <span class="sc3"><span class="re1"></channel<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><image</span> <span class="re0">rdf:about</span>=<span class="st0">"http://xml.com/universal/images/xml_tiny.gif"</span><span class="re2">></span></span> <span class="sc3"><span class="re1"><title<span class="re2">></span></span></span>XML.com<span class="sc3"><span class="re1"></title<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><link<span class="re2">></span></span></span>http://www.xml.com<span class="sc3"><span class="re1"></link<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><url<span class="re2">></span></span></span>http://xml.com/universal/images/xml_tiny.gif<span class="sc3"><span class="re1"></url<span class="re2">></span></span></span> <span class="sc3"><span class="re1"></image<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><item</span> <span class="re0">rdf:about</span>=<span class="st0">"http://xml.com/pub/2000/08/09/xslt/xslt.html"</span><span class="re2">></span></span> <span class="sc3"><span class="re1"><title<span class="re2">></span></span></span>Processing Inclusions with XSLT<span class="sc3"><span class="re1"></title<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><link<span class="re2">></span></span></span>http://xml.com/pub/2000/08/09/xslt/xslt.html<span class="sc3"><span class="re1"></link<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><description<span class="re2">></span></span></span> Processing document inclusions with general XML tools can be problematic. This article proposes a way of preserving inclusion information through SAX-based processing. <span class="sc3"><span class="re1"></description<span class="re2">></span></span></span> <span class="sc3"><span class="re1"></item<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><item</span> <span class="re0">rdf:about</span>=<span class="st0">"http://xml.com/pub/2000/08/09/rdfdb/index.html"</span><span class="re2">></span></span> <span class="sc3"><span class="re1"><title<span class="re2">></span></span></span>Putting RDF to Work<span class="sc3"><span class="re1"></title<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><link<span class="re2">></span></span></span>http://xml.com/pub/2000/08/09/rdfdb/index.html<span class="sc3"><span class="re1"></link<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><description<span class="re2">></span></span></span> Tool and API support for the Resource Description Framework is slowly coming of age. Edd Dumbill takes a look at RDFDB, one of the most exciting new RDF toolkits. <span class="sc3"><span class="re1"></description<span class="re2">></span></span></span> <span class="sc3"><span class="re1"></item<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><textinput</span> <span class="re0">rdf:about</span>=<span class="st0">"http://search.xml.com"</span><span class="re2">></span></span> <span class="sc3"><span class="re1"><title<span class="re2">></span></span></span>Search XML.com<span class="sc3"><span class="re1"></title<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><description<span class="re2">></span></span></span>Search XML.com's XML collection<span class="sc3"><span class="re1"></description<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><name<span class="re2">></span></span></span>s<span class="sc3"><span class="re1"></name<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><link<span class="re2">></span></span></span>http://search.xml.com<span class="sc3"><span class="re1"></link<span class="re2">></span></span></span> <span class="sc3"><span class="re1"></textinput<span class="re2">></span></span></span> <span class="sc3"><span class="re1"></rdf:RDF<span class="re2">></span></span></span> </pre></div> <p><a name="RSS_2.0" id="RSS_2.0"></a></p> <h3><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=9" title="Edit section: RSS 2.0">edit</a>]</span> <span class="mw-headline">RSS 2.0</span></h3> <p>The following is an example of an RSS 2.0 file (strings in red font).</p> <div dir="ltr" style="text-align: left;"> <pre class="source-xml"> <span class="sc3"><span class="re1"><?xml</span> <span class="re0">version</span>=<span class="st0">"1.0"</span><span class="re2">?></span></span> <span class="sc3"><span class="re1"><rss</span> <span class="re0">version</span>=<span class="st0">"2.0"</span><span class="re2">></span></span> <span class="sc3"><span class="re1"><channel<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><title<span class="re2">></span></span></span>Lift Off News<span class="sc3"><span class="re1"></title<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><link<span class="re2">></span></span></span>http://liftoff.msfc.nasa.gov/<span class="sc3"><span class="re1"></link<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><description<span class="re2">></span></span></span>Liftoff to Space Exploration.<span class="sc3"><span class="re1"></description<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><language<span class="re2">></span></span></span>en-us<span class="sc3"><span class="re1"></language<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><pubDate<span class="re2">></span></span></span>Tue, 10 Jun 2003 04:00:00 GMT<span class="sc3"><span class="re1"></pubDate<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><lastBuildDate<span class="re2">></span></span></span>Tue, 10 Jun 2003 09:41:01 GMT<span class="sc3"><span class="re1"></lastBuildDate<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><docs<span class="re2">></span></span></span>http://blogs.law.harvard.edu/tech/rss<span class="sc3"><span class="re1"></docs<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><generator<span class="re2">></span></span></span>Weblog Editor 2.0<span class="sc3"><span class="re1"></generator<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><managingEditor<span class="re2">></span></span></span>editor@example.com<span class="sc3"><span class="re1"></managingEditor<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><webMaster<span class="re2">></span></span></span>webmaster@example.com<span class="sc3"><span class="re1"></webMaster<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><ttl<span class="re2">></span></span></span>5<span class="sc3"><span class="re1"></ttl<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><item<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><title<span class="re2">></span></span></span>Star City<span class="sc3"><span class="re1"></title<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><link<span class="re2">></span></span></span>http://liftoff.msfc.nasa.gov/news/2003/news-starcity.asp<span class="sc3"><span class="re1"></link<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><description<span class="re2">></span></span></span>How do Americans get ready to work with Russians aboard the International Space Station? They take a crash course in culture, language and protocol at Russia's Star City.<span class="sc3"><span class="re1"></description<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><pubDate<span class="re2">></span></span></span>Tue, 03 Jun 2003 09:39:21 GMT<span class="sc3"><span class="re1"></pubDate<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><guid<span class="re2">></span></span></span>http://liftoff.msfc.nasa.gov/2003/06/03.html#item573<span class="sc3"><span class="re1"></guid<span class="re2">></span></span></span> <span class="sc3"><span class="re1"></item<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><item<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><title<span class="re2">></span></span></span>Space Exploration<span class="sc3"><span class="re1"></title<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><link<span class="re2">></span></span></span>http://liftoff.msfc.nasa.gov/<span class="sc3"><span class="re1"></link<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><description<span class="re2">></span></span></span>Sky watchers in Europe, Asia, and parts of Alaska and Canada will experience a partial eclipse of the Sun on Saturday, May 31st.<span class="sc3"><span class="re1"></description<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><pubDate<span class="re2">></span></span></span>Fri, 30 May 2003 11:06:42 GMT<span class="sc3"><span class="re1"></pubDate<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><guid<span class="re2">></span></span></span>http://liftoff.msfc.nasa.gov/2003/05/30.html#item572<span class="sc3"><span class="re1"></guid<span class="re2">></span></span></span> <span class="sc3"><span class="re1"></item<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><item<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><title<span class="re2">></span></span></span>The Engine That Does More<span class="sc3"><span class="re1"></title<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><link<span class="re2">></span></span></span>http://liftoff.msfc.nasa.gov/news/2003/news-VASIMR.asp<span class="sc3"><span class="re1"></link<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><description<span class="re2">></span></span></span>Before man travels to Mars, NASA hopes to design new engines that will let us fly through the Solar System more quickly. The proposed VASIMR engine would do that.<span class="sc3"><span class="re1"></description<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><pubDate<span class="re2">></span></span></span>Tue, 27 May 2003 08:37:32 GMT<span class="sc3"><span class="re1"></pubDate<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><guid<span class="re2">></span></span></span>http://liftoff.msfc.nasa.gov/2003/05/27.html#item571<span class="sc3"><span class="re1"></guid<span class="re2">></span></span></span> <span class="sc3"><span class="re1"></item<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><item<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><title<span class="re2">></span></span></span>Astronauts' Dirty Laundry<span class="sc3"><span class="re1"></title<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><link<span class="re2">></span></span></span>http://liftoff.msfc.nasa.gov/news/2003/news-laundry.asp<span class="sc3"><span class="re1"></link<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><description<span class="re2">></span></span></span>Compared to earlier spacecraft, the International Space Station has many luxuries, but laundry facilities are not one of them. Instead, astronauts have other options.<span class="sc3"><span class="re1"></description<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><pubDate<span class="re2">></span></span></span>Tue, 20 May 2003 08:56:02 GMT<span class="sc3"><span class="re1"></pubDate<span class="re2">></span></span></span> <span class="sc3"><span class="re1"><guid<span class="re2">></span></span></span>http://liftoff.msfc.nasa.gov/2003/05/20.html#item570<span class="sc3"><span class="re1"></guid<span class="re2">></span></span></span> <span class="sc3"><span class="re1"></item<span class="re2">></span></span></span> <span class="sc3"><span class="re1"></channel<span class="re2">></span></span></span> <span class="sc3"><span class="re1"></rss<span class="re2">></span></span></span> </pre></div> <p><a name="Including_in_XHTML" id="Including_in_XHTML"></a></p> <h3><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=10" title="Edit section: Including in XHTML">edit</a>]</span> <span class="mw-headline">Including in XHTML</span></h3> <p>The following tag should be placed into the head of an XHTML document to provide a link to an RSS Feed.</p> <div dir="ltr" style="text-align: left;"> <pre class="source-xml"> <span class="sc3"><span class="re1"><link</span> <span class="re0">href</span>=<span class="st0">"rss.xml"</span> <span class="re0">rel</span>=<span class="st0">"alternate"</span> <span class="re0">type</span>=<span class="st0">"application/rss+xml"</span> <span class="re0">title</span>=<span class="st0">"Sitewide RSS Feed"</span> <span class="re2">/></span></span> </pre></div> <p><a name="See_also" id="See_also"></a></p> <h2><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=11" title="Edit section: See also">edit</a>]</span> <span class="mw-headline">See also</span></h2> <ul> <li><a href="/web/20081217025512/http://en.wikipedia.org/wiki/DataPortability" title="DataPortability">DataPortability</a></li> </ul> <p><a name="Mashup_creators" id="Mashup_creators"></a></p> <h3><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=12" title="Edit section: Mashup creators">edit</a>]</span> <span class="mw-headline"><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Mashup_(web_application_hybrid)" title="Mashup (web application hybrid)">Mashup</a> creators</span></h3> <ul> <li><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Google_Mashup_Editor" title="Google Mashup Editor">Google Mashup Editor</a></li> <li><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Microsoft_Popfly" title="Microsoft Popfly">Microsoft Popfly</a></li> <li><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Yahoo!_Pipes" title="Yahoo! Pipes">Yahoo! Pipes</a></li> <li><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Pageflakes" title="Pageflakes">Pageflakes</a></li> <li><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Netvibes" title="Netvibes">Netvibes</a></li> </ul> <p><a name="References" id="References"></a></p> <h2><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=13" title="Edit section: References">edit</a>]</span> <span class="mw-headline">References</span></h2> <div class="references-small references-column-count references-column-count-2" style="-moz-column-count:2; column-count:2;"> <ol class="references"> <li id="cite_note-0"><b><a href="#cite_ref-0" title="">^</a></b> "<a href="https://web.archive.org/web/20081217025512/http://www.rssboard.org/rss-mime-type-application.txt" class="external text" title="http://www.rssboard.org/rss-mime-type-application.txt" rel="nofollow">The application/rss+xml Media Type</a>". Network Working Group (<a href="/web/20081217025512/http://en.wikipedia.org/wiki/May_22" title="May 22">May 22</a>, <a href="/web/20081217025512/http://en.wikipedia.org/wiki/2006" title="2006">2006</a>). Retrieved on 2007-08-16.</li> <li id="cite_note-Netsc99-1">^ <a href="#cite_ref-Netsc99_1-0" title=""><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Netsc99_1-1" title=""><sup><i><b>b</b></i></sup></a> Libby, Dan (1999-07-10). "<a href="https://web.archive.org/web/20081217025512/http://web.archive.org/web/20001204093600/my.netscape.com/publish/formats/rss-spec-0.91.html" class="external text" title="http://web.archive.org/web/20001204093600/my.netscape.com/publish/formats/rss-spec-0.91.html" rel="nofollow">RSS 0.91 Spec, revision 3</a>". <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Netscape" title="Netscape">Netscape Communications</a>. Retrieved on 2007-02-14.</li> <li id="cite_note-GuardWF-2"><b><a href="#cite_ref-GuardWF_2-0" title="">^</a></b> "Web feeds | RSS | The Guardian | guardian.co.uk", <i>The Guardian</i>, London, 2008, webpage: <a href="https://web.archive.org/web/20081217025512/http://www.guardian.co.uk/webfeeds" class="external text" title="http://www.guardian.co.uk/webfeeds" rel="nofollow">GuardianUK-webfeeds</a>.</li> <li id="cite_note-Qstart-3">^ <a href="#cite_ref-Qstart_3-0" title=""><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Qstart_3-1" title=""><sup><i><b>b</b></i></sup></a> "<a href="https://web.archive.org/web/20081217025512/http://web.archive.org/web/20001208063100/http://my.netscape.com/publish/help/quickstart.html" class="external text" title="http://web.archive.org/web/20001208063100/http://my.netscape.com/publish/help/quickstart.html" rel="nofollow">My Netscape Network: Quick Start</a>". <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Netscape" title="Netscape">Netscape Communications</a>. Archived from <a href="https://web.archive.org/web/20081217025512/http://my.netscape.com/publish/help/quickstart.html" class="external text" title="http://my.netscape.com/publish/help/quickstart.html" rel="nofollow">the original</a> on 2000-12-08. Retrieved on 2006-10-31.</li> <li id="cite_note-4"><b><a href="#cite_ref-4" title="">^</a></b> "<a href="https://web.archive.org/web/20081217025512/http://blogs.msdn.com/rssteam/archive/2005/12/14/503778.aspx" class="external text" title="http://blogs.msdn.com/rssteam/archive/2005/12/14/503778.aspx" rel="nofollow">Icons: It's still orange</a>". Microsoft RSS Blog (<a href="/web/20081217025512/http://en.wikipedia.org/wiki/December_14" title="December 14">December 14</a>, <a href="/web/20081217025512/http://en.wikipedia.org/wiki/2005" title="2005">2005</a>). Retrieved on 2008-11-09.</li> <li id="cite_note-5"><b><a href="#cite_ref-5" title="">^</a></b> <a href="https://web.archive.org/web/20081217025512/http://blogspace.com/rss/readers" class="external text" title="http://blogspace.com/rss/readers" rel="nofollow">Blogspace "RSS readers (RSS info)"</a></li> <li id="cite_note-6"><b><a href="#cite_ref-6" title="">^</a></b> Lash, Alex (<a href="/web/20081217025512/http://en.wikipedia.org/wiki/1997" title="1997">1997</a>-<a href="/web/20081217025512/http://en.wikipedia.org/wiki/October_3" title="October 3">10-03</a>). "<a href="https://web.archive.org/web/20081217025512/http://news.com.com/2100-1001-203893.html" class="external text" title="http://news.com.com/2100-1001-203893.html" rel="nofollow">W3C takes first step toward RDF spec</a>". Retrieved on 2007-02-16.</li> <li id="cite_note-7"><b><a href="#cite_ref-7" title="">^</a></b> RSS Advisory Board (June 7, 2007). "<a href="https://web.archive.org/web/20081217025512/http://www.rssboard.org/rss-history" class="external text" title="http://www.rssboard.org/rss-history" rel="nofollow">RSS History</a>". Retrieved on 2007-09-04.</li> <li id="cite_note-8"><b><a href="#cite_ref-8" title="">^</a></b> "<a href="https://web.archive.org/web/20081217025512/http://web.archive.org/web/20001204123600/http://my.netscape.com/publish/help/futures.html" class="external text" title="http://web.archive.org/web/20001204123600/http://my.netscape.com/publish/help/futures.html" rel="nofollow">MNN Future Directions</a>". <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Netscape" title="Netscape">Netscape Communications</a>. Archived from <a href="https://web.archive.org/web/20081217025512/http://my.netscape.com/publish/help/futures.html" class="external text" title="http://my.netscape.com/publish/help/futures.html" rel="nofollow">the original</a> on 2000-12-04. Retrieved on 2006-10-31.</li> <li id="cite_note-9"><b><a href="#cite_ref-9" title="">^</a></b> Andrew King (<a href="/web/20081217025512/http://en.wikipedia.org/wiki/2003" title="2003">2003</a>-<a href="/web/20081217025512/http://en.wikipedia.org/wiki/April_13" title="April 13">04-13</a>). "<a href="https://web.archive.org/web/20081217025512/http://www.webreference.com/authoring/languages/xml/rss/1/" class="external text" title="http://www.webreference.com/authoring/languages/xml/rss/1/" rel="nofollow">The Evolution of RSS</a>". Retrieved on 2007-01-17.</li> <li id="cite_note-10"><b><a href="#cite_ref-10" title="">^</a></b> Winer, Dave (<a href="/web/20081217025512/http://en.wikipedia.org/wiki/2000" title="2000">2000</a>-<a href="/web/20081217025512/http://en.wikipedia.org/wiki/June_4" title="June 4">06-04</a>). "<a href="https://web.archive.org/web/20081217025512/http://backend.userland.com/rss091#copyrightAndDisclaimer" class="external text" title="http://backend.userland.com/rss091#copyrightAndDisclaimer" rel="nofollow">RSS 0.91: Copyright and Disclaimer</a>". <a href="/web/20081217025512/http://en.wikipedia.org/wiki/UserLand_Software" title="UserLand Software">UserLand Software</a>. Retrieved on 2006-10-31.</li> <li id="cite_note-11"><b><a href="#cite_ref-11" title="">^</a></b> U.S. Patent & Trademark Office. "<a href="https://web.archive.org/web/20081217025512/http://tarr.uspto.gov/servlet/tarr?regser=serial&entry=78025336" class="external text" title="http://tarr.uspto.gov/servlet/tarr?regser=serial&entry=78025336" rel="nofollow">'RSS' Trademark Latest Status Info</a>".</li> <li id="cite_note-12"><b><a href="#cite_ref-12" title="">^</a></b> RSS-DEV Working Group (<a href="/web/20081217025512/http://en.wikipedia.org/wiki/2000" title="2000">2000</a>-<a href="/web/20081217025512/http://en.wikipedia.org/wiki/December_9" title="December 9">12-09</a>). "<a href="https://web.archive.org/web/20081217025512/http://web.resource.org/rss/1.0/spec" class="external text" title="http://web.resource.org/rss/1.0/spec" rel="nofollow">RDF Site Summary (RSS) 1.0</a>". Retrieved on 2006-10-31.</li> <li id="cite_note-13"><b><a href="#cite_ref-13" title="">^</a></b> Winer, Dave (<a href="/web/20081217025512/http://en.wikipedia.org/wiki/2000" title="2000">2000</a>-<a href="/web/20081217025512/http://en.wikipedia.org/wiki/December_25" title="December 25">12-25</a>). "<a href="https://web.archive.org/web/20081217025512/http://backend.userland.com/rss092" class="external text" title="http://backend.userland.com/rss092" rel="nofollow">RSS 0.92 Specification</a>". <a href="/web/20081217025512/http://en.wikipedia.org/wiki/UserLand_Software" title="UserLand Software">UserLand Software</a>. Retrieved on 2006-10-31.</li> <li id="cite_note-14"><b><a href="#cite_ref-14" title="">^</a></b> Winer, Dave (<a href="/web/20081217025512/http://en.wikipedia.org/wiki/2001" title="2001">2001</a>-<a href="/web/20081217025512/http://en.wikipedia.org/wiki/April_20" title="April 20">04-20</a>). "<a href="https://web.archive.org/web/20081217025512/http://backend.userland.com/rss093" class="external text" title="http://backend.userland.com/rss093" rel="nofollow">RSS 0.93 Specification</a>". <a href="/web/20081217025512/http://en.wikipedia.org/wiki/UserLand_Software" title="UserLand Software">UserLand Software</a>. Retrieved on 2006-10-31.</li> <li id="cite_note-15"><b><a href="#cite_ref-15" title="">^</a></b> Festa, Paul (2003-08-04). "<a href="https://web.archive.org/web/20081217025512/http://news.cnet.com/Battle-of-the-blog/2009-1032_3-5059006.html" class="external text" title="http://news.cnet.com/Battle-of-the-blog/2009-1032_3-5059006.html" rel="nofollow">Dispute exposes bitter power struggle behind Web logs</a>". news.cnet.com. Retrieved on 2008-08-06. "The conflict centers on something called Really Simple Syndication (RSS), a technology widely used to syndicate blogs and other Web content. The dispute pits Harvard Law School fellow Dave Winer, the blogging pioneer who is the key gatekeeper of RSS, against advocates of a different format."</li> <li id="cite_note-16"><b><a href="#cite_ref-16" title="">^</a></b> "<a href="https://web.archive.org/web/20081217025512/http://www.rssboard.org/advisory-board-notes" class="external text" title="http://www.rssboard.org/advisory-board-notes" rel="nofollow">Advisory Board Notes</a>". <a href="/web/20081217025512/http://en.wikipedia.org/wiki/RSS_Advisory_Board" title="RSS Advisory Board">RSS Advisory Board</a> (<a href="/web/20081217025512/http://en.wikipedia.org/wiki/2003" title="2003">2003</a>-<a href="/web/20081217025512/http://en.wikipedia.org/wiki/July_18" title="July 18">07-18</a>). Retrieved on 2007-09-04.</li> <li id="cite_note-17"><b><a href="#cite_ref-17" title="">^</a></b> "<a href="https://web.archive.org/web/20081217025512/http://www.scripting.com/2003/07/18.html#rss20News" class="external text" title="http://www.scripting.com/2003/07/18.html#rss20News" rel="nofollow">RSS 2.0 News</a>". <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Dave_Winer" title="Dave Winer">Dave Winer</a>. Retrieved on 2007-09-04.</li> <li id="cite_note-18"><b><a href="#cite_ref-18" title="">^</a></b> <a href="https://web.archive.org/web/20081217025512/http://blogs.msdn.com/rssteam/archive/2005/12/14/503778.aspx" class="external text" title="http://blogs.msdn.com/rssteam/archive/2005/12/14/503778.aspx" rel="nofollow">Icons: It’s still orange</a>, Microsoft RSS Blog, 14 December 2005</li> <li id="cite_note-19"><b><a href="#cite_ref-19" title="">^</a></b> <a href="https://web.archive.org/web/20081217025512/http://blogs.msdn.com/michael_affronti/archive/2005/12/15/504316.aspx" class="external text" title="http://blogs.msdn.com/michael_affronti/archive/2005/12/15/504316.aspx" rel="nofollow">RSS icon goodness</a>, blog post by Michael A. Affronti of Microsoft (Outlook Program Manager), 15 December 2005</li> <li id="cite_note-W3C_REC_XML_Namespace-20"><b><a href="#cite_ref-W3C_REC_XML_Namespace_20-0" title="">^</a></b> "<a href="https://web.archive.org/web/20081217025512/http://www.w3.org/TR/REC-xml-names/" class="external text" title="http://www.w3.org/TR/REC-xml-names/" rel="nofollow">Namespaces in XML 1.0</a>". W3C (16 August 2006).</li> <li id="cite_note-21"><b><a href="#cite_ref-21" title="">^</a></b> <a href="https://web.archive.org/web/20081217025512/http://www.peachpit.com/articles/article.aspx?p=674690" class="external text" title="http://www.peachpit.com/articles/article.aspx?p=674690" rel="nofollow">Peachpit article</a></li> <li id="cite_note-22"><b><a href="#cite_ref-22" title="">^</a></b> <a href="https://web.archive.org/web/20081217025512/http://www.syndic8.com/stats.php?Section=feeds#tabtable" class="external text" title="http://www.syndic8.com/stats.php?Section=feeds#tabtable" rel="nofollow">Syndic8 stats table</a></li> </ol> </div> <p><a name="External_links" id="External_links"></a></p> <h2><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=14" title="Edit section: External links">edit</a>]</span> <span class="mw-headline">External links</span></h2> <table class="metadata plainlinks ombox-small" style="border:1px solid #aaa; background-color:#f9f9f9;"> <tr> <td class="mbox-image"><a href="https://web.archive.org/web/20081217025512/http://commons.wikimedia.org/wiki/Main_page" title="commons:Main page"><img alt="Sister project" src="https://web.archive.org/web/20081217025512im_/http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/50px-Commons-logo.svg.png" width="50" height="67" border="0"/></a></td> <td class="mbox-text" style=""><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Wikimedia_Commons" title="Wikimedia Commons">Wikimedia Commons</a> has media related to: <i><b><a href="https://web.archive.org/web/20081217025512/http://commons.wikimedia.org/wiki/RSS" class="extiw" title="commons:RSS">RSS</a></b></i></td> </tr> </table> <p><a name="Specifications" id="Specifications"></a></p> <h3><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=15" title="Edit section: Specifications">edit</a>]</span> <span class="mw-headline">Specifications</span></h3> <ul> <li><a href="https://web.archive.org/web/20081217025512/http://www.rssboard.org/rss-0-9-0" class="external text" title="http://www.rssboard.org/rss-0-9-0" rel="nofollow">RSS 0.90 Specification</a></li> <li><a href="https://web.archive.org/web/20081217025512/http://www.rssboard.org/rss-0-9-1-netscape" class="external text" title="http://www.rssboard.org/rss-0-9-1-netscape" rel="nofollow">RSS 0.91 Specification</a></li> <li><a href="https://web.archive.org/web/20081217025512/http://web.resource.org/rss/1.0/" class="external text" title="http://web.resource.org/rss/1.0/" rel="nofollow">RSS 1.0 Specifications</a> <a href="https://web.archive.org/web/20081217025512/http://purl.org/rss/1.0/" class="external text" title="http://purl.org/rss/1.0/" rel="nofollow">(RDF Site Summary 1.0)</a> <a href="https://web.archive.org/web/20081217025512/http://dmoz.org/Reference/Libraries/Library_and_Information_Science/Technical_Services/Cataloguing/Metadata/RDF/Applications/RSS/Specifications/RSS_1.0_Modules/" class="external text" title="http://dmoz.org/Reference/Libraries/Library_and_Information_Science/Technical_Services/Cataloguing/Metadata/RDF/Applications/RSS/Specifications/RSS_1.0_Modules/" rel="nofollow">Modules</a></li> </ul> <ul> <li><a href="https://web.archive.org/web/20081217025512/http://cyber.law.harvard.edu/rss/rss.html" class="external text" title="http://cyber.law.harvard.edu/rss/rss.html" rel="nofollow">RSS 2.0 Specification by Dave Winer</a></li> <li><a href="https://web.archive.org/web/20081217025512/http://www.rssboard.org/rss-specification" class="external text" title="http://www.rssboard.org/rss-specification" rel="nofollow">RSS 2.0 (2.0.10) specification by the RSS Advisory Board</a></li> <li><a href="https://web.archive.org/web/20081217025512/http://msdn2.microsoft.com/en-us/xml/bb190613.aspx" class="external text" title="http://msdn2.microsoft.com/en-us/xml/bb190613.aspx" rel="nofollow">Draft Microsoft specification for Simple Sharing Extensions to RSS</a> (<a href="/web/20081217025512/http://en.wikipedia.org/wiki/Simple_Sharing_Extensions" title="Simple Sharing Extensions" class="mw-redirect">See Wikipedia article</a>)</li> </ul> <p><a name="Articles" id="Articles"></a></p> <h3><span class="editsection">[<a href="/web/20081217025512/http://en.wikipedia.org/w/index.php?title=RSS&action=edit&section=16" title="Edit section: Articles">edit</a>]</span> <span class="mw-headline">Articles</span></h3> <ul> <li><a href="https://web.archive.org/web/20081217025512/http://backend.userland.com/davesRss2PoliticalFaq" class="external text" title="http://backend.userland.com/davesRss2PoliticalFaq" rel="nofollow">RSS Political Faq</a> (Dave Winer)</li> <li><a href="https://web.archive.org/web/20081217025512/http://diveintomark.org/archives/2002/09/06/history_of_the_rss_fork" class="external text" title="http://diveintomark.org/archives/2002/09/06/history_of_the_rss_fork" rel="nofollow">History of the RSS Fork</a> (Mark Pilgrim)</li> <li><a href="https://web.archive.org/web/20081217025512/http://www.xul.fr/en-xml-rss.html" class="external text" title="http://www.xul.fr/en-xml-rss.html" rel="nofollow">Building an RSS feed</a> Tutorial with example.</li> </ul> <p><br/></p> <table class="navbox" cellspacing="0" style=";"> <tr> <td style="padding:2px;"> <table cellspacing="0" class="nowraplinks collapsible autocollapse" style="width:100%;background:transparent;color:inherit;;"> <tr> <th style=";" colspan="2" class="navbox-title"> <div style="float:left; width:6em;text-align:left;"> <div class="noprint plainlinksneverexpand" style="background-color:transparent; padding:0; white-space:nowrap; font-weight:normal; font-size:xx-small; ;;border:none;;"><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Template:Aggregators" title="Template:Aggregators"><span title="View this template" style=";;border:none;;">v</span></a> <span style="font-size:80%;">•</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Template_talk:Aggregators" title="Template talk:Aggregators"><span style="color:#002bb8;;;border:none;;" title="Discussion about this template">d</span></a> <span style="font-size:80%;">•</span> <a href="https://web.archive.org/web/20081217025512/http://en.wikipedia.org/w/index.php?title=Template:Aggregators&action=edit" class="external text" title="http://en.wikipedia.org/w/index.php?title=Template:Aggregators&action=edit" rel="nofollow"><span style="color:#002bb8;;;border:none;;" title="You can edit this template. Please use the preview button before saving.">e</span></a></div> </div> <span style="font-size:110%;"><a href="/web/20081217025512/http://en.wikipedia.org/wiki/File:Feed-icon.svg" class="image" title="Feed-icon.svg"><img alt="" src="https://web.archive.org/web/20081217025512im_/http://upload.wikimedia.org/wikipedia/commons/thumb/4/43/Feed-icon.svg/16px-Feed-icon.svg.png" width="16" height="16" border="0"/></a> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Aggregator" title="Aggregator">Aggregators</a></span></th> </tr> <tr style="height:2px;"> <td></td> </tr> <tr> <td class="navbox-group" style=";;"><a href="/web/20081217025512/http://en.wikipedia.org/wiki/List_of_feed_aggregators" title="List of feed aggregators">Client software</a></td> <td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-odd"> <div style="padding:0em 0.25em"><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Akregator" title="Akregator">Akregator</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/AOL_Explorer" title="AOL Explorer">AOL Explorer</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Avant_Browser" title="Avant Browser">Avant Browser</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Blam!" title="Blam!">Blam!</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/BlogBridge" title="BlogBridge">BlogBridge</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/BottomFeeder" title="BottomFeeder">BottomFeeder</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Camino" title="Camino">Camino</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Claws_Mail" title="Claws Mail">Claws Mail</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Cooliris_(plugin)" title="Cooliris (plugin)">Cooliris</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Epiphany_(browser)" title="Epiphany (browser)">Epiphany</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/FeedBeast" title="FeedBeast">FeedBeast</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/FeedDemon" title="FeedDemon">FeedDemon</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/FeedGhost" title="FeedGhost">FeedGhost</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Feedreader_(Windows_Application)" title="Feedreader (Windows Application)">Feedreader</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Feedview" title="Feedview">Feedview</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Flock_(web_browser)" title="Flock (web browser)">Flock</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/FreeRange_WebReader" title="FreeRange WebReader">FreeRange WebReader</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Gnus" title="Gnus">Gnus</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Hubdog" title="Hubdog">Hubdog</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/IBM_Lotus_Notes" title="IBM Lotus Notes">IBM Lotus Notes</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/ICab" title="ICab">iCab</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Internet_Explorer" title="Internet Explorer">Internet Explorer</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/K-Meleon" title="K-Meleon">K-Meleon</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Kazehakase" title="Kazehakase">Kazehakase</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Liferea" title="Liferea">Liferea</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Mail_(application)" title="Mail (application)">Mail</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Maxthon" title="Maxthon">Maxthon</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/MDigger" title="MDigger">mDigger</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Mercury_Messenger" title="Mercury Messenger">Mercury Messenger</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Microsoft_Outlook" title="Microsoft Outlook">Microsoft Outlook</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Mindity" title="Mindity">Mindity</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Mozilla_Firefox" title="Mozilla Firefox">Mozilla Firefox</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Mozilla_Thunderbird" title="Mozilla Thunderbird">Mozilla Thunderbird</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/NetNewsWire" title="NetNewsWire">NetNewsWire</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Netscape_Browser" title="Netscape Browser">Netscape Browser</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Netscape_Navigator_9" title="Netscape Navigator 9">Netscape Navigator 9</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/NewsAccess" title="NewsAccess">NewsAccess</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/NewsBreak" title="NewsBreak">NewsBreak</a> <span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Newsbeuter" title="Newsbeuter">Newsbeuter</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/NewsFire" title="NewsFire">NewsFire</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/NewsFox" title="NewsFox">NewsFox</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Omea" title="Omea">Omea</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/OmniWeb" title="OmniWeb">OmniWeb</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Opera_Mail" title="Opera Mail">Opera Mail</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Pegasus_Mail" title="Pegasus Mail">Pegasus Mail</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/RSS_Bandit" title="RSS Bandit">RSS Bandit</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/RSSOwl" title="RSSOwl">RSSOwl</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Safari_(web_browser)" title="Safari (web browser)">Safari</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Sage_(Mozilla_Firefox_extension)" title="Sage (Mozilla Firefox extension)">Sage</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/SeaMonkey" title="SeaMonkey">SeaMonkey</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Shiira" title="Shiira">Shiira</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Sleipnir_(software)" title="Sleipnir (software)">Sleipnir</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Snarfer" title="Snarfer">Snarfer</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Tencent_Traveler" title="Tencent Traveler">Tencent Traveler</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/The_Bat!" title="The Bat!">The Bat!</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Thinfeeder" title="Thinfeeder">Thinfeeder</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Vienna_(feed_reader)" title="Vienna (feed reader)">Vienna</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Windows_Live_Mail" title="Windows Live Mail">Windows Live Mail</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Windows_Mail" title="Windows Mail">Windows Mail</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Zimbra" title="Zimbra">Zimbra</a></div> </td> </tr> <tr style="height:2px"> <td></td> </tr> <tr> <td class="navbox-group" style=";;"><a href="/web/20081217025512/http://en.wikipedia.org/wiki/List_of_feed_aggregators" title="List of feed aggregators">Web-based software</a></td> <td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-even"> <div style="padding:0em 0.25em"><a href="/web/20081217025512/http://en.wikipedia.org/wiki/AideRSS" title="AideRSS">aideRSS</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/AmphetaDesk" title="AmphetaDesk">AmphetaDesk</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Bloglines" title="Bloglines">Bloglines</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Daylife" title="Daylife">Daylife</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Drupal" title="Drupal">Drupal</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Fastladder" title="Fastladder">Fastladder</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Google_News" title="Google News">Google News</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Google_Reader" title="Google Reader">Google Reader</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Imooty.eu" title="Imooty.eu">Imooty.eu</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Live.com" title="Live.com" class="mw-redirect">Live.com</a> <span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/MDigger" title="MDigger">mDigger</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Newsknowledge" title="Newsknowledge">Newsknowledge</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Netvibes" title="Netvibes">Netvibes</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Pageflakes" title="Pageflakes">Pageflakes</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Planet_(software)" title="Planet (software)">Planet</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Rojo.com" title="Rojo.com">Rojo.com</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Seeking_Alpha" title="Seeking Alpha">Seeking Alpha</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Spokeo" title="Spokeo">Spokeo</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Yahoo!" title="Yahoo!">Yahoo!</a></div> </td> </tr> <tr style="height:2px"> <td></td> </tr> <tr> <td class="navbox-group" style=";;"><a href="/web/20081217025512/http://en.wikipedia.org/wiki/List_of_feed_aggregators" title="List of feed aggregators">Media aggregators</a></td> <td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-odd"> <div style="padding:0em 0.25em"><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Akregator" title="Akregator">Akregator</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Amarok_(software)" title="Amarok (software)">Amarok</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Canola_(software)" title="Canola (software)">Canola</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Flock_(web_browser)" title="Flock (web browser)">Flock</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/ITunes" title="ITunes">iTunes</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Juice_(software)" title="Juice (software)">Juice</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Mediafly" title="Mediafly">Mediafly</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/MediaMonkey" title="MediaMonkey">MediaMonkey</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Miro_(software)" title="Miro (software)">Miro</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Rhythmbox" title="Rhythmbox">Rhythmbox</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Songbird_(software)" title="Songbird (software)">Songbird</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Winamp" title="Winamp">Winamp</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Zune_Software" title="Zune Software" class="mw-redirect">Zune</a></div> </td> </tr> <tr style="height:2px"> <td></td> </tr> <tr> <td class="navbox-group" style=";;">Related articles</td> <td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-even"> <div style="padding:0em 0.25em"><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Comparison_of_feed_aggregators" title="Comparison of feed aggregators">Comparison of feed aggregators</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/List_of_feed_aggregators" title="List of feed aggregators">List of feed aggregators</a></div> </td> </tr> <tr style="height:2px"> <td></td> </tr> <tr> <td class="navbox-group" style=";;">Technologies</td> <td style="text-align:left;border-left:2px solid #fdfdfd;width:100%;padding:0px;;;" class="navbox-list navbox-odd"> <div style="padding:0em 0.25em"><strong class="selflink">RSS</strong><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Media_RSS" title="Media RSS">Media RSS</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/RSS_enclosure" title="RSS enclosure">RSS enclosure</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/GeoRSS" title="GeoRSS">GeoRSS</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Atom_(standard)" title="Atom (standard)">Atom</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Podcast" title="Podcast">Podcasting</a><span style="font-weight:bold;"> ·</span> <a href="/web/20081217025512/http://en.wikipedia.org/wiki/Broadcatching" title="Broadcatching">Broadcatching</a></div> </td> </tr> </table> </td> </tr> </table> <!-- NewPP limit report Preprocessor node count: 4356/1000000 Post-expand include size: 46895/2048000 bytes Template argument size: 39139/2048000 bytes Expensive parser function count: 0/500 --> <!-- Saved in parser cache with key enwiki:pcache:idhash:93489-0!1!0!default!!en!2 and timestamp 20081214010723 --> <div class="printfooter"> Retrieved from "<a href="https://web.archive.org/web/20081217025512/http://en.wikipedia.org/wiki/RSS">http://en.wikipedia.org/wiki/RSS</a>"</div> <div id="catlinks" class="catlinks"><div id="mw-normal-catlinks"><a href="/web/20081217025512/http://en.wikipedia.org/wiki/Special:Categories" 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href="https://web.archive.org/web/20081217025512/http://es.wikipedia.org/wiki/RSS">Español</a></li> <li class="interwiki-eo"><a href="https://web.archive.org/web/20081217025512/http://eo.wikipedia.org/wiki/RSS">Esperanto</a></li> <li class="interwiki-eu"><a href="https://web.archive.org/web/20081217025512/http://eu.wikipedia.org/wiki/RSS">Euskara</a></li> <li class="interwiki-fa"><a href="https://web.archive.org/web/20081217025512/http://fa.wikipedia.org/wiki/%D8%A2%D8%B1%D8%A7%D8%B3%E2%80%8C%D8%A7%D8%B3">فارسی</a></li> <li class="interwiki-fr"><a href="https://web.archive.org/web/20081217025512/http://fr.wikipedia.org/wiki/RSS_(format)">Français</a></li> <li class="interwiki-gl"><a href="https://web.archive.org/web/20081217025512/http://gl.wikipedia.org/wiki/RSS">Galego</a></li> <li class="interwiki-ko"><a href="https://web.archive.org/web/20081217025512/http://ko.wikipedia.org/wiki/RSS">한국어</a></li> <li class="interwiki-hi"><a href="https://web.archive.org/web/20081217025512/http://hi.wikipedia.org/wiki/%E0%A4%86%E0%A4%B0_%E0%A4%8F%E0%A4%B8_%E0%A4%8F%E0%A4%B8_%E0%A4%AB%E0%A5%80%E0%A4%A1">हिन्दी</a></li> <li class="interwiki-hr"><a href="https://web.archive.org/web/20081217025512/http://hr.wikipedia.org/wiki/RSS">Hrvatski</a></li> <li class="interwiki-id"><a href="https://web.archive.org/web/20081217025512/http://id.wikipedia.org/wiki/RSS">Bahasa Indonesia</a></li> <li class="interwiki-it"><a href="https://web.archive.org/web/20081217025512/http://it.wikipedia.org/wiki/Really_simple_syndication">Italiano</a></li> <li class="interwiki-he"><a href="https://web.archive.org/web/20081217025512/http://he.wikipedia.org/wiki/RSS">עברית</a></li> <li class="interwiki-ka"><a href="https://web.archive.org/web/20081217025512/http://ka.wikipedia.org/wiki/RSS">ქართული</a></li> <li class="interwiki-kk"><a href="https://web.archive.org/web/20081217025512/http://kk.wikipedia.org/wiki/RSS">Қазақша</a></li> <li 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href="https://web.archive.org/web/20081217025512/http://nl.wikipedia.org/wiki/Really_Simple_Syndication">Nederlands</a></li> <li class="interwiki-ja"><a href="https://web.archive.org/web/20081217025512/http://ja.wikipedia.org/wiki/RSS">日本語</a></li> <li class="interwiki-no"><a href="https://web.archive.org/web/20081217025512/http://no.wikipedia.org/wiki/RSS">Norsk (bokmål)</a></li> <li class="interwiki-nn"><a href="https://web.archive.org/web/20081217025512/http://nn.wikipedia.org/wiki/RSS">Norsk (nynorsk)</a></li> <li class="interwiki-uz"><a href="https://web.archive.org/web/20081217025512/http://uz.wikipedia.org/wiki/RSS">O'zbek</a></li> <li class="interwiki-pl"><a href="https://web.archive.org/web/20081217025512/http://pl.wikipedia.org/wiki/Really_Simple_Syndication">Polski</a></li> <li class="interwiki-pt"><a href="https://web.archive.org/web/20081217025512/http://pt.wikipedia.org/wiki/RSS">Português</a></li> <li class="interwiki-ro"><a href="https://web.archive.org/web/20081217025512/http://ro.wikipedia.org/wiki/RSS">Română</a></li> <li class="interwiki-ru"><a href="https://web.archive.org/web/20081217025512/http://ru.wikipedia.org/wiki/RSS">Русский</a></li> <li class="interwiki-sq"><a href="https://web.archive.org/web/20081217025512/http://sq.wikipedia.org/wiki/RSS">Shqip</a></li> <li class="interwiki-simple"><a href="https://web.archive.org/web/20081217025512/http://simple.wikipedia.org/wiki/Really_Simple_Syndication">Simple English</a></li> <li class="interwiki-sk"><a href="https://web.archive.org/web/20081217025512/http://sk.wikipedia.org/wiki/RSS_(form%C3%A1t_s%C3%BAboru)">Slovenčina</a></li> <li class="interwiki-sl"><a href="https://web.archive.org/web/20081217025512/http://sl.wikipedia.org/wiki/RSS_(protokol)">Slovenščina</a></li> <li class="interwiki-sh"><a href="https://web.archive.org/web/20081217025512/http://sh.wikipedia.org/wiki/RSS">Srpskohrvatski / Српскохрватски</a></li> <li class="interwiki-fi"><a href="https://web.archive.org/web/20081217025512/http://fi.wikipedia.org/wiki/RSS">Suomi</a></li> <li class="interwiki-sv"><a href="https://web.archive.org/web/20081217025512/http://sv.wikipedia.org/wiki/RSS">Svenska</a></li> <li class="interwiki-th"><a href="https://web.archive.org/web/20081217025512/http://th.wikipedia.org/wiki/%E0%B8%AD%E0%B8%B2%E0%B8%A3%E0%B9%8C%E0%B9%80%E0%B8%AD%E0%B8%AA%E0%B9%80%E0%B8%AD%E0%B8%AA">ไทย</a></li> <li class="interwiki-vi"><a href="https://web.archive.org/web/20081217025512/http://vi.wikipedia.org/wiki/RSS_(%C4%91%E1%BB%8Bnh_d%E1%BA%A1ng_t%E1%BA%ADp_tin)">Tiếng Việt</a></li> <li class="interwiki-tr"><a href="https://web.archive.org/web/20081217025512/http://tr.wikipedia.org/wiki/RSS">Türkçe</a></li> <li class="interwiki-uk"><a href="https://web.archive.org/web/20081217025512/http://uk.wikipedia.org/wiki/RSS">Українська</a></li> <li class="interwiki-yi"><a href="https://web.archive.org/web/20081217025512/http://yi.wikipedia.org/wiki/%D7%90%D7%A8_%D7%A2%D7%A1_%D7%A2%D7%A1">ייִדיש</a></li> <li class="interwiki-zh"><a href="https://web.archive.org/web/20081217025512/http://zh.wikipedia.org/wiki/RSS">中文</a></li> </ul> </div> </div> </div><!-- end of the left (by default at least) column --> <div class="visualClear"></div> <div id="footer"> <div id="f-poweredbyico"><a href="https://web.archive.org/web/20081217025512/http://www.mediawiki.org/"><img src="https://web.archive.org/web/20081217025512im_/http://upload.wikimedia.org/skins/common/images/poweredby_mediawiki_88x31.png" alt="Powered by MediaWiki"/></a></div> <div id="f-copyrightico"><a href="https://web.archive.org/web/20081217025512/http://wikimediafoundation.org/"><img src="/web/20081217025512im_/http://en.wikipedia.org/images/wikimedia-button.png" border="0" alt="Wikimedia Foundation"/></a></div> <ul id="f-list"> <li id="lastmod"> This page was last modified on 14 December 2008, at 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