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class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Versions"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Versions</span> </div> </a> <ul id="toc-Versions-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 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cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">FOAF</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 14 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-14" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">14 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/FOAF" title="FOAF – Catalan" lang="ca" hreflang="ca" data-title="FOAF" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/FOAF" title="FOAF – German" lang="de" hreflang="de" data-title="FOAF" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/FOAF" title="FOAF – Spanish" lang="es" hreflang="es" data-title="FOAF" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A7%D9%81%E2%80%8C%D8%A7%D9%88%D8%A7%DB%8C%E2%80%8C%D8%A7%D9%81_(%D9%87%D8%B3%D8%AA%DB%8C%E2%80%8C%D8%B4%D9%86%D8%A7%D8%B3%DB%8C)" title="اف‌اوای‌اف (هستی‌شناسی) – Persian" lang="fa" hreflang="fa" data-title="اف‌اوای‌اف (هستی‌شناسی)" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/FOAF" title="FOAF – French" lang="fr" hreflang="fr" data-title="FOAF" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/FOAF" title="FOAF – Italian" lang="it" hreflang="it" data-title="FOAF" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/FOAF" title="FOAF – Latvian" lang="lv" hreflang="lv" data-title="FOAF" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/FOAF" title="FOAF – Dutch" lang="nl" hreflang="nl" data-title="FOAF" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/Friend_of_a_Friend" title="Friend of a Friend – Japanese" lang="ja" hreflang="ja" data-title="Friend of a Friend" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/FOAF" title="FOAF – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="FOAF" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/FOAF_(format)" title="FOAF (format) – Polish" lang="pl" hreflang="pl" data-title="FOAF (format)" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/FOAF" title="FOAF – Portuguese" lang="pt" hreflang="pt" data-title="FOAF" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/FOAF" title="FOAF – Russian" lang="ru" hreflang="ru" data-title="FOAF" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/FOAF" title="FOAF – Ukrainian" lang="uk" hreflang="uk" data-title="FOAF" data-language-autonym="Українська" data-language-local-name="Ukrainian" 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data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For "friend of a friend", see <a href="/wiki/Friend_of_a_friend" title="Friend of a friend">friend of a friend</a> and <a href="/wiki/Friend_of_a_Friend_(disambiguation)" class="mw-redirect mw-disambig" title="Friend of a Friend (disambiguation)">Friend of a Friend (disambiguation)</a>.</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox hproduct"><caption class="infobox-title fn">FOAF</caption><tbody><tr><td colspan="2" class="infobox-subheader">Friend of a friend</td></tr><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"><a href="/wiki/File:FoafLogo.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/FoafLogo.svg/120px-FoafLogo.svg.png" decoding="async" width="120" height="85" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/FoafLogo.svg/180px-FoafLogo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/FoafLogo.svg/240px-FoafLogo.svg.png 2x" data-file-width="1052" data-file-height="744" /></a></span><div class="infobox-caption">FOAF logo</div></td></tr><tr><th scope="row" class="infobox-label">Abbreviation</th><td class="infobox-data">FOAF</td></tr><tr><th scope="row" class="infobox-label">Status</th><td class="infobox-data">Published</td></tr><tr><th scope="row" class="infobox-label">Year started</th><td class="infobox-data">2000<span class="noprint">; 25 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">2000</span>)</span></td></tr><tr><th scope="row" class="infobox-label">First published</th><td class="infobox-data">June 3, 2005<span class="noprint">; 19 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">2005-06-03</span>)</span></td></tr><tr><th scope="row" class="infobox-label">Latest version</th><td class="infobox-data">0.99<br />January 14, 2014<span class="noprint">; 11 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">2014-01-14</span>)</span></td></tr><tr><th scope="row" class="infobox-label">Series</th><td class="infobox-data">Namespace Document</td></tr><tr><th scope="row" class="infobox-label">Authors</th><td class="infobox-data">Dan Brickley, Libby Miller</td></tr><tr><th scope="row" class="infobox-label">Base standards</th><td class="infobox-data"><a href="/wiki/Resource_Description_Framework" title="Resource Description Framework">RDF</a>, <a href="/wiki/Web_Ontology_Language" title="Web Ontology Language">OWL</a></td></tr><tr><th scope="row" class="infobox-label">Domain</th><td class="infobox-data"><a href="/wiki/Semantic_Web" title="Semantic Web">Semantic Web</a></td></tr><tr><th scope="row" class="infobox-label">License</th><td class="infobox-data"><a href="/wiki/Creative_Commons_license" title="Creative Commons license">CC BY 1.0</a></td></tr><tr><th scope="row" class="infobox-label">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="http://xmlns.com/foaf/spec/">xmlns<wbr />.com<wbr />/foaf<wbr />/spec<wbr />/</a></span></td></tr></tbody></table> <p><b>FOAF</b> (an acronym of <b><a href="/wiki/Friend_of_a_friend" title="Friend of a friend">friend of a friend</a></b>) is a <a href="/wiki/Machine-readable_data" class="mw-redirect" title="Machine-readable data">machine-readable</a> <a href="/wiki/Ontology_(information_science)" title="Ontology (information science)">ontology</a> describing <a href="/wiki/Person" title="Person">persons</a>, their activities and their relations to other people and objects. Anyone can use FOAF to describe themselves. FOAF allows groups of people to describe <a href="/wiki/Social_networks" class="mw-redirect" title="Social networks">social networks</a> without the need for a centralised database. </p><p>FOAF is a descriptive vocabulary expressed using the <a href="/wiki/Resource_Description_Framework" title="Resource Description Framework">Resource Description Framework</a> (RDF) and the <a href="/wiki/Web_Ontology_Language" title="Web Ontology Language">Web Ontology Language</a> (OWL). Computers may use these FOAF profiles to find, for example, all people living in Europe, or to list all people both you and a friend of yours know.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> This is accomplished by defining relationships between people. Each profile has a unique identifier (such as the person's <a href="/wiki/E-mail_address" class="mw-redirect" title="E-mail address">e-mail addresses</a>, international <a href="/wiki/Telephone_number" title="Telephone number">telephone number</a>, <a href="/wiki/Facebook" title="Facebook">Facebook</a> account name, a <a href="/wiki/Extensible_Messaging_and_Presence_Protocol" class="mw-redirect" title="Extensible Messaging and Presence Protocol">Jabber ID</a>, or a <a href="/wiki/Uniform_Resource_Identifier" title="Uniform Resource Identifier">URI</a> of the homepage or weblog of the person), which is used when defining these relationships. </p><p>The FOAF project, which defines and extends the vocabulary of a FOAF profile, was started in 2000 by Libby Miller and Dan Brickley. It can be considered the first <a href="/wiki/Social_Semantic_Web" title="Social Semantic Web">Social Semantic Web</a> application,<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (April 2017)">citation needed</span></a></i>]</sup> in that it combines <a href="/wiki/Resource_Description_Framework" title="Resource Description Framework">RDF</a> technology with '<a href="/wiki/Social_web" title="Social web">social web</a>' concerns.<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Please_clarify" title="Wikipedia:Please clarify"><span title="The text near this tag may need clarification or removal of jargon. (April 2017)">clarification needed</span></a></i>]</sup> </p><p><a href="/wiki/Tim_Berners-Lee" title="Tim Berners-Lee">Tim Berners-Lee</a>, in a 2007 essay,<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> redefined the <a href="/wiki/Semantic_web" class="mw-redirect" title="Semantic web">semantic web</a> concept into the <a href="/wiki/Giant_Global_Graph" title="Giant Global Graph">Giant Global Graph</a> (GGG), where relationships transcend networks and documents. He considers the GGG to be on equal ground with the <a href="/wiki/Internet" title="Internet">Internet</a> and the <a href="/wiki/World_Wide_Web" title="World Wide Web">World Wide Web</a>, stating that "I express my network in a FOAF file, and that is a start of the revolution." </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="WebID">WebID</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=FOAF&action=edit&section=1" title="Edit section: WebID"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>FOAF is one of the key components of the <a href="/wiki/WebID" title="WebID">WebID</a> specifications, in particular for the WebID+TLS protocol, which was formerly known as FOAF+SSL. </p> <div class="mw-heading mw-heading2"><h2 id="Deployment">Deployment</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=FOAF&action=edit&section=2" title="Edit section: Deployment"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Although it is a relatively simple use-case and standard, FOAF has had limited adoption on the web. For example, the <a href="/wiki/Live_Journal" class="mw-redirect" title="Live Journal">Live Journal</a> and <a href="/wiki/DeadJournal" class="mw-redirect" title="DeadJournal">DeadJournal</a> blogging sites support FOAF profiles for all their members,<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> <a href="/wiki/My_Opera" title="My Opera">My Opera</a> community supported FOAF profiles for members as well as groups. FOAF support is present on <a href="/wiki/Identi.ca" title="Identi.ca">Identi.ca</a>, <a href="/wiki/FriendFeed" title="FriendFeed">FriendFeed</a>, <a href="/wiki/WordPress" title="WordPress">WordPress</a> and <a href="/wiki/TypePad" class="mw-redirect" title="TypePad">TypePad</a> services.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p><a href="/wiki/Yandex" title="Yandex">Yandex</a> blog search platform supports search over FOAF profile information.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Prominent client-side FOAF support was available in <a href="/wiki/Safari_(web_browser)" title="Safari (web browser)">Safari</a><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> web browser before RSS support was removed in Safari 6 and in the Semantic Radar<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> plugin for <a href="/wiki/Firefox_(web_browser)" class="mw-redirect" title="Firefox (web browser)">Firefox</a> browser. <a href="/wiki/Semantic_MediaWiki" title="Semantic MediaWiki">Semantic MediaWiki</a>, the <a href="/wiki/Semantic_annotation" class="mw-redirect" title="Semantic annotation">semantic annotation</a> and <a href="/wiki/Linked_data" title="Linked data">linked data</a> extension of <a href="/wiki/MediaWiki" title="MediaWiki">MediaWiki</a> supports mapping properties to external ontologies, including FOAF which is enabled by default. </p><p>There are also modules or plugins to support FOAF profiles or FOAF+SSL authorization for programming languages,<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> as well as for <a href="/wiki/Content_management_systems" class="mw-redirect" title="Content management systems">content management systems</a>.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Example">Example</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=FOAF&action=edit&section=3" title="Edit section: Example"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The following FOAF profile (written in <a href="/wiki/Turtle_(syntax)" title="Turtle (syntax)">Turtle</a> format) states that James Wales is the name of the person described here. His e-mail address, homepage and depiction are <a href="/wiki/Web_resource" title="Web resource">web resources</a>, which means that each can be described using RDF as well. He has Wikimedia as an interest, and knows Angela Beesley (which is the name of a 'Person' resource). </p> <div class="mw-highlight mw-highlight-lang-turtle mw-content-ltr" dir="ltr"><pre><span></span><span class="k">@prefix</span><span class="w"> </span><span class="nn">rdf:</span><span class="w"> </span><span class="nv"><http://www.w3.org/1999/02/22-rdf-syntax-ns#></span><span class="w"> </span><span class="p">.</span> <span class="k">@prefix</span><span class="w"> </span><span class="nn">rdfs:</span><span class="w"> </span><span class="nv"><http://www.w3.org/2000/01/rdf-schema#></span><span class="w"> </span><span class="p">.</span> <span class="k">@prefix</span><span class="w"> </span><span class="nn">foaf:</span><span class="w"> </span><span class="nv"><http://xmlns.com/foaf/0.1/></span><span class="w"> </span><span class="p">.</span> <span class="nv"><#JW></span> <span class="kt">a</span> <span class="nn">foaf</span><span class="p">:</span><span class="nt">Person</span> <span class="p">;</span> <span class="nn">foaf</span><span class="p">:</span><span class="nt">name</span> <span class="s">"James Wales"</span> <span class="p">;</span> <span class="nn">foaf</span><span class="p">:</span><span class="nt">mbox</span> <span class="nv"><mailto:jwales@bomis.com></span> <span class="p">;</span> <span class="nn">foaf</span><span class="p">:</span><span class="nt">homepage</span> <span class="nv"><http://www.jameswales.com></span> <span class="p">;</span> <span class="nn">foaf</span><span class="p">:</span><span class="nt">nick</span> <span class="s">"Jimbo"</span> <span class="p">;</span> <span class="nn">foaf</span><span class="p">:</span><span class="nt">depiction</span> <span class="nv"><http://www.jameswales.com/aus_img_small.jpg></span> <span class="p">;</span> <span class="nn">foaf</span><span class="p">:</span><span class="nt">interest</span> <span class="nv"><http://www.wikimedia.org></span> <span class="p">;</span> <span class="nn">foaf</span><span class="p">:</span><span class="nt">knows</span> <span class="p">[</span> <span class="kt">a</span> <span class="nn">foaf</span><span class="p">:</span><span class="nt">Person</span> <span class="p">;</span> <span class="nn">foaf</span><span class="p">:</span><span class="nt">name</span> <span class="s">"Angela Beesley"</span> <span class="p">]</span> <span class="p">.</span> <span class="nv"><http://www.wikimedia.org></span> <span class="nn">rdfs</span><span class="p">:</span><span class="nt">label</span> <span class="s">"Wikimedia"</span> <span class="p">.</span> </pre></div> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=FOAF&action=edit&section=4" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Versions">Versions</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=FOAF&action=edit&section=5" title="Edit section: Versions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable sortable"> <caption>Versions table </caption> <tbody><tr> <th>Version </th> <th>Date </th> <th>namespace URI </th> <th>Description </th></tr> <tr> <td style="color: var(--color-base, #202122);" class="templateVersion co swatch-unsupported" title="Old version, not maintained" data-sort-value="0.98"><span style="display: none;">Old version, not maintained:</span> 0.98 </td> <td><span data-sort-value="000000002010-08-09-0000" style="white-space:nowrap">August 9, 2010</span> </td> <td><a rel="nofollow" class="external free" href="http://xmlns.com/foaf/0.1/">http://xmlns.com/foaf/0.1/</a> </td></tr> <tr> <td style="color: var(--color-base, #202122);" class="templateVersion c swatch-latest" title="Latest version" data-sort-value="0.99"><span style="display: none;">Latest version:</span> <b>0.99</b> </td> <td><span data-sort-value="000000002014-01-14-0000" style="white-space:nowrap">January 14, 2014</span><sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </td> <td><a rel="nofollow" class="external free" href="http://xmlns.com/foaf/0.1/">http://xmlns.com/foaf/0.1/</a> </td> <td>Current version <p>Paddington Edition </p> </td></tr> <tr> <td colspan="4"><style data-mw-deduplicate="TemplateStyles:r1277105988">.mw-parser-output .version-legend{display:flex;flex-wrap:wrap;column-gap:12px}.mw-parser-output .version-legend-vertical{display:flex;flex-wrap:wrap;column-gap:4px;flex-direction:column}.mw-parser-output .version-legend .legend-item,.mw-parser-output .version-legend-vertical .legend-item{page-break-inside:avoid;break-inside:avoid-column;gap:4px}.mw-parser-output .version-legend .legend-item .swatch,.mw-parser-output .version-legend-vertical .legend-item .swatch{display:inline-block;width:1.25em;height:1.25em;border:1px solid #aaa;margin-top:1px}.mw-parser-output .swatch-unsupported{background-color:#fdb3ab}.mw-parser-output .swatch-maintained{background-color:#fef8c6}.mw-parser-output .swatch-latest{background-color:#d4f4b4}.mw-parser-output .swatch-preview{background-color:#fed1a0}.mw-parser-output .swatch-future{background-color:#c1e6f5}@media screen{html.skin-theme-clientpref-night .mw-parser-output .version-legend .legend-item .swatch,html.skin-theme-clientpref-night .mw-parser-output .version-legend-vertical .legend-item .swatch{border-color:#72777d}html.skin-theme-clientpref-night .mw-parser-output .swatch-unsupported{background-color:#421511}html.skin-theme-clientpref-night .mw-parser-output .swatch-maintained{background-color:#443f19}html.skin-theme-clientpref-night .mw-parser-output .swatch-latest{background-color:#2b4115}html.skin-theme-clientpref-night .mw-parser-output .swatch-preview{background-color:#4b3114}html.skin-theme-clientpref-night .mw-parser-output .swatch-future{background-color:#143b4b}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .version-legend .legend-item .swatch,html.skin-theme-clientpref-os .mw-parser-output .version-legend-vertical .legend-item .swatch{border-color:#72777d}html.skin-theme-clientpref-os .mw-parser-output .swatch-unsupported{background-color:#421511}html.skin-theme-clientpref-os .mw-parser-output .swatch-maintained{background-color:#443f19}html.skin-theme-clientpref-os .mw-parser-output .swatch-latest{background-color:#2b4115}html.skin-theme-clientpref-os .mw-parser-output .swatch-preview{background-color:#4b3114}html.skin-theme-clientpref-os .mw-parser-output .swatch-future{background-color:#143b4b}}</style><div class="templateVersion l version-legend" style=""><div style="display: none;"><span style="white-space: nowrap;"><b>Legend:</b></span></div><div style="display: flex;" class="legend-item"><span class="swatch swatch-unsupported"></span>Old version</div><div style="display: none;" class="legend-item"><span class="swatch swatch-maintained"></span>Old version, still maintained</div><div style="display: flex;" class="legend-item"><span class="swatch swatch-latest"></span><b>Latest version</b></div><div style="display: none;" class="legend-item"><span class="swatch swatch-preview"></span>Latest preview version</div><div style="display: none;" class="legend-item"><span class="swatch swatch-future"></span>Future version</div></div> </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=FOAF&action=edit&section=6" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Resource_Description_Framework" title="Resource Description Framework">Resource Description Framework</a> (RDF)</li> <li><a href="/wiki/Web_Ontology_Language" title="Web Ontology Language">Web Ontology Language</a> (OWL)</li> <li><a href="/wiki/Social_web" title="Social web">Social web</a></li> <li><a href="/wiki/Semantic_Web" title="Semantic Web">Semantic Web</a></li> <li><a href="https://en.wiktionary.org/wiki/DOAC" class="extiw" title="wiktionary:DOAC">Description of a Career</a> (DOAC)</li> <li><a href="/wiki/DOAP" title="DOAP">Description of a Project</a> (DOAP)</li> <li><a href="/wiki/Semantically-Interlinked_Online_Communities" class="mw-redirect" title="Semantically-Interlinked Online Communities">Semantically-Interlinked Online Communities</a> (SIOC)</li> <li><a href="/wiki/HCard" title="HCard">hCard</a> (HTML <a href="/wiki/VCard" title="VCard">vCard</a>)</li> <li><a href="/wiki/XHTML_Friends_Network" title="XHTML Friends Network">XHTML Friends Network</a> (XFN)</li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=FOAF&action=edit&section=7" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20091223003446/http://www.ibm.com/developerworks/xml/library/x-foaf.html">XML Watch: Finding friends with XML and RDF</a> by Edd Dumbill in IBM DeveloperWorks</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20100307223814/http://www.ibm.com/developerworks/xml/library/x-foaf2.html">XML Watch: Support online communities with FOAF</a> by Edd Dumbill in IBM DeveloperWorks</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFBerners_Lee" class="citation web cs1">Berners Lee, Tim. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160713021037/http://dig.csail.mit.edu/breadcrumbs/node/215">"Giant Global Graph"</a>. <i>Decentralized Information Group</i>. Archived from <a rel="nofollow" class="external text" href="http://dig.csail.mit.edu/breadcrumbs/node/215">the original</a> on 2016-07-13.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Decentralized+Information+Group&rft.atitle=Giant+Global+Graph&rft.aulast=Berners+Lee&rft.aufirst=Tim&rft_id=http%3A%2F%2Fdig.csail.mit.edu%2Fbreadcrumbs%2Fnode%2F215&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFOAF" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20100118151037/http://community.livejournal.com/ljfoaf">"LiveJournal FOAF"</a>. <i>LiveJournal</i>. Archived from <a rel="nofollow" class="external text" href="http://community.livejournal.com/ljfoaf">the original</a> on 2010-01-18.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=LiveJournal&rft.atitle=LiveJournal+FOAF&rft_id=http%3A%2F%2Fcommunity.livejournal.com%2Fljfoaf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFOAF" class="Z3988"></span>.</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20100226072731/http://wiki.foaf-project.org/w/DataSources">"Known FOAF data providers"</a>. FOAF project. Archived from <a rel="nofollow" class="external text" href="http://wiki.foaf-project.org/w/DataSources">the original</a> on 2010-02-26.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Known+FOAF+data+providers&rft.pub=FOAF+project&rft_id=http%3A%2F%2Fwiki.foaf-project.org%2Fw%2FDataSources&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFOAF" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://company.yandex.com/press_center/press_releases/2008/2008-08-15.xml">"press release on the social networking support"</a>. Yandex. 2008-08-15.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=press+release+on+the+social+networking+support&rft.pub=Yandex&rft.date=2008-08-15&rft_id=http%3A%2F%2Fcompany.yandex.com%2Fpress_center%2Fpress_releases%2F2008%2F2008-08-15.xml&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFOAF" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://ejohn.org/blog/foaf-support-in-safari-rss/">"FOAF Support in Safari RSS"</a>. eJohn.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=FOAF+Support+in+Safari+RSS&rft.pub=eJohn&rft_id=http%3A%2F%2Fejohn.org%2Fblog%2Ffoaf-support-in-safari-rss%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFOAF" class="Z3988"></span>.</span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20140108014347/https://addons.mozilla.org/en-US/firefox/addon/semantic-radar/">"Semantic Radar plugin for the Firefox browser"</a>. Mozilla. Archived from <a rel="nofollow" class="external text" href="https://addons.mozilla.org/en-US/firefox/addon/semantic-radar/">the original</a> on 2014-01-08<span class="reference-accessdate">. Retrieved <span class="nowrap">2012-02-20</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Semantic+Radar+plugin+for+the+Firefox+browser&rft.pub=Mozilla&rft_id=https%3A%2F%2Faddons.mozilla.org%2Fen-US%2Ffirefox%2Faddon%2Fsemantic-radar%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFOAF" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://metacpan.org/pod/XML::FOAF">"FOAF support module for Perl"</a>. CPAN.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=FOAF+support+module+for+Perl&rft.pub=CPAN&rft_id=https%3A%2F%2Fmetacpan.org%2Fpod%2FXML%3A%3AFOAF&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFOAF" class="Z3988"></span></span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://metacpan.org/pod/Web::ID">"FOAF+SSL authentication support for Perl"</a>. CPAN.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=FOAF%2BSSL+authentication+support+for+Perl&rft.pub=CPAN&rft_id=https%3A%2F%2Fmetacpan.org%2Fpod%2FWeb%3A%3AID&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFOAF" class="Z3988"></span></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external free" href="https://drupal.org/project/foaf">http://drupal.org/project/foaf</a> - FOAF support for <a href="/wiki/Drupal" title="Drupal">Drupal</a></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFBrickleyMiller2014" class="citation web cs1">Brickley, Dan; Miller, Libby (2014-01-14). <a rel="nofollow" class="external text" href="http://xmlns.com/foaf/spec/20140114.html">"FOAF Vocabulary Specification 0.99"</a>. <i>xmlns.com</i>. FOAF project. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20220303180551/http://xmlns.com/foaf/spec/20140114.html">Archived</a> from the original on 2022-03-03<span class="reference-accessdate">. Retrieved <span class="nowrap">2022-03-31</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=xmlns.com&rft.atitle=FOAF+Vocabulary+Specification+0.99&rft.date=2014-01-14&rft.aulast=Brickley&rft.aufirst=Dan&rft.au=Miller%2C+Libby&rft_id=http%3A%2F%2Fxmlns.com%2Ffoaf%2Fspec%2F20140114.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFOAF" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=FOAF&action=edit&section=8" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="official-website"><span class="url"><a rel="nofollow" class="external text" href="http://www.foaf-project.org">Official website</a></span></span> (<a rel="nofollow" class="external text" href="https://web.archive.org/web/20211023122305/http://www.foaf-project.org/">Archived</a> 23 October 2021 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>)</li> <li><a rel="nofollow" class="external text" href="http://ebiquity.umbc.edu/resource/html/id/82/">FOAF dataset</a> a dataset of 201,612 FOAF triples</li> <li>Archived: <a rel="nofollow" class="external text" href="https://web.archive.org/web/20181130195340/https://www.foaf-search.net/">FOAF-search - a search engine for FOAF data</a> at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> (archived 2018-11-30)</li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output 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service-oriented architecture</a></li> <li><a href="/wiki/Semantic_wiki" title="Semantic wiki">Semantic wiki</a></li> <li><a href="/wiki/Solid_(web_decentralization_project)" title="Solid (web decentralization project)">Solid</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related topics</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Collective_intelligence" title="Collective intelligence">Collective intelligence</a></li> <li><a href="/wiki/Description_logic" title="Description logic">Description logic</a></li> <li><a href="/wiki/Folksonomy" title="Folksonomy">Folksonomy</a></li> <li><a href="/wiki/Geotagging" title="Geotagging">Geotagging</a></li> <li><a href="/wiki/Information_architecture" title="Information architecture">Information architecture</a></li> <li><a href="/wiki/IXBRL" class="mw-redirect" title="IXBRL">iXBRL</a></li> <li><a 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href="/wiki/Web_Science_Trust" title="Web Science Trust">Web Science Trust</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Standards</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Syntax and supporting technologies</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HTTP" title="HTTP">HTTP</a></li> <li><a href="/wiki/Internationalized_Resource_Identifier" title="Internationalized Resource Identifier">IRI</a> <ul><li><small><a href="/wiki/Uniform_Resource_Identifier" title="Uniform Resource Identifier">URI</a></small></li></ul></li> <li><a href="/wiki/Resource_Description_Framework" title="Resource Description Framework">RDF</a> <ul><li><small><a href="/wiki/Semantic_triple" title="Semantic triple">triples</a></small></li> <li><small><a href="/wiki/RDF/XML" title="RDF/XML">RDF/XML</a></small></li> <li><small><a href="/wiki/JSON-LD" title="JSON-LD">JSON-LD</a></small></li> <li><small><a href="/wiki/Turtle_(syntax)" title="Turtle (syntax)">Turtle</a></small></li> <li><small><a href="/wiki/TriG_(syntax)" title="TriG (syntax)">TriG</a></small></li> <li><small><a href="/wiki/Notation3" title="Notation3">Notation3</a></small></li> <li><small><a href="/wiki/N-Triples" title="N-Triples">N-Triples</a></small></li> <li><small><a href="/wiki/TriX_(serialization_format)" title="TriX (serialization format)">TriX</a> (no W3C standard)</small></li></ul></li> <li><a href="/wiki/Research_Resource_Identifier" class="mw-redirect" title="Research Resource Identifier">RRID</a></li> <li><a href="/wiki/SPARQL" title="SPARQL">SPARQL</a></li> <li><a href="/wiki/XML" title="XML">XML</a></li> <li><a href="/wiki/Semantic_HTML" title="Semantic HTML">Semantic HTML</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Schemas, ontologies and rules</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Common_Logic" title="Common Logic">Common Logic</a></li> <li><a href="/wiki/Web_Ontology_Language" title="Web Ontology Language">OWL</a></li> <li><a href="/wiki/RDF_Schema" title="RDF Schema">RDFS</a></li> <li><a href="/wiki/Rule_Interchange_Format" title="Rule Interchange Format">Rule Interchange Format</a></li> <li><a href="/wiki/Semantic_Web_Rule_Language" title="Semantic Web Rule Language">Semantic Web Rule Language</a></li> <li><a href="/w/index.php?title=Application-Level_Profile_Semantics_(ALPS)&action=edit&redlink=1" class="new" title="Application-Level Profile Semantics (ALPS) (page does not exist)">ALPS</a></li> <li><a href="/wiki/SHACL" title="SHACL">SHACL</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Semantic annotation</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/GRDDL" title="GRDDL">GRDDL</a></li> <li><a href="/wiki/Microdata_(HTML)" title="Microdata (HTML)">Microdata</a></li> <li><a href="/wiki/Microformat" title="Microformat">Microformats</a></li> <li><a href="/wiki/RDFa" title="RDFa">RDFa</a></li> <li><a href="/wiki/SAWSDL" title="SAWSDL">SAWSDL</a></li> <li><a href="/wiki/Facebook_Platform" title="Facebook Platform">Facebook Platform</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Common vocabularies</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/DOAP" title="DOAP">DOAP</a></li> <li><a href="/wiki/Dublin_Core" title="Dublin Core">Dublin Core</a></li> <li><a class="mw-selflink selflink">FOAF</a></li> <li><a href="/wiki/Schema.org" title="Schema.org">Schema.org</a></li> <li><a href="/wiki/Semantically_Interlinked_Online_Communities" title="Semantically Interlinked Online Communities">SIOC</a></li> <li><a href="/wiki/Simple_Knowledge_Organization_System" title="Simple Knowledge Organization System">SKOS</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Microformat vocabularies</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HAtom" title="HAtom">hAtom</a></li> <li><a href="/wiki/HCalendar" title="HCalendar">hCalendar</a></li> <li><a href="/wiki/HCard" title="HCard">hCard</a></li> <li><a href="/wiki/HProduct" title="HProduct">hProduct</a></li> <li><a href="/wiki/HRecipe" title="HRecipe">hRecipe</a></li> <li><a href="/wiki/HReview" title="HReview">hReview</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235" /></div><div role="navigation" class="navbox" aria-labelledby="Social_networks_and_social_media172" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231" /><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Social_networking" title="Template:Social networking"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Social_networking" title="Template talk:Social networking"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Social_networking" title="Special:EditPage/Template:Social networking"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Social_networks_and_social_media172" style="font-size:114%;margin:0 4em"><a href="/wiki/Social_network" title="Social network">Social networks</a> and <a href="/wiki/Social_media" title="Social media">social media</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Types</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Personal_network" title="Personal network">Personal</a></li> <li><a href="/wiki/Professional_network_service" title="Professional network service">Professional</a></li> <li><a href="/wiki/Sexual_network" title="Sexual network">Sexual</a></li> <li><a href="/wiki/Value_network" title="Value network">Value</a></li> <li><a href="/wiki/Clique" title="Clique">Clique</a> <ul><li><a href="/wiki/Adolescent_clique" title="Adolescent clique">Adolescent</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Networks</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0;background:#F4F0E;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Corporate_social_media" title="Corporate social media">Corporate social media</a></li> <li><a href="/wiki/Distributed_social_network" title="Distributed social network">Distributed social network</a> (<a href="/wiki/Comparison_of_software_and_protocols_for_distributed_social_networking" title="Comparison of software and protocols for distributed social networking"><i>list</i></a>)</li> <li><a href="/wiki/Enterprise_social_networking" title="Enterprise social networking">Enterprise social networking</a></li> <li><a href="/wiki/Enterprise_social_software" title="Enterprise social software">Enterprise social software</a></li> <li><a href="/wiki/Mobile_social_network" title="Mobile social network">Mobile social network</a></li> <li><a href="/wiki/Personal_knowledge_networking" title="Personal knowledge networking">Personal knowledge networking</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Social_networking_service" title="Social networking service">Services</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_social_networking_services" title="List of social networking services">List of social networking services</a></li> <li><a href="/wiki/List_of_virtual_communities_with_more_than_1_million_users" title="List of virtual communities with more than 1 million users">List of virtual communities with more than 1 million users</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Concepts and<br /> theories</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0;background:#F4F0E;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ambient_awareness" title="Ambient awareness">Ambient awareness</a></li> <li><a href="/wiki/Assortative_mixing" title="Assortative mixing">Assortative mixing</a></li> <li><a href="/wiki/Attention_inequality" title="Attention inequality">Attention inequality</a></li> <li><a href="/wiki/Bridge_(interpersonal)" title="Bridge (interpersonal)">Interpersonal bridge</a></li> <li><a href="/wiki/Organizational_network_analysis" title="Organizational network analysis">Organizational network analysis</a></li> <li><a href="/wiki/Small-world_experiment" title="Small-world experiment">Small-world experiment</a></li> <li><a href="/wiki/Social_aspects_of_television" title="Social aspects of television">Social aspects of television</a></li> <li><a href="/wiki/Social_capital" title="Social capital">Social capital</a></li> <li><a href="/wiki/Social_data_revolution" title="Social data revolution">Social data revolution</a></li> <li><a href="/wiki/Social_exchange_theory" title="Social exchange theory">Social exchange theory</a></li> <li><a href="/wiki/Social_identity_theory" title="Social identity theory">Social identity theory</a></li> <li><a href="/wiki/Social_media_and_psychology" title="Social media and psychology">Social media and psychology</a></li> <li><a href="/wiki/Social_media_intelligence" title="Social media intelligence">Social media intelligence</a></li> <li><a href="/wiki/Social_media_mining" title="Social media mining">Social media mining</a></li> <li><a href="/wiki/Social_media_optimization" title="Social media optimization">Social media optimization</a></li> <li><a href="/wiki/Social_network_analysis" title="Social network analysis">Social network analysis</a></li> <li><a href="/wiki/Social_web" title="Social web">Social web</a></li> <li><a href="/wiki/Structural_endogamy" title="Structural endogamy">Structural endogamy</a></li> <li><a href="/wiki/Virtual_collective_consciousness" title="Virtual collective consciousness">Virtual collective consciousness</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Models and<br /> processes</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Account_verification" title="Account verification">Account verification</a></li> <li><a href="/wiki/Social_network_aggregation" title="Social network aggregation">Aggregation</a></li> <li><a href="/wiki/Social_network_change_detection" class="mw-redirect" title="Social network change detection">Change detection</a></li> <li><a href="/wiki/Blockmodeling" title="Blockmodeling">Blockmodeling</a></li> <li><a href="/wiki/Collaboration_graph" title="Collaboration graph">Collaboration graph</a></li> <li><a href="/wiki/Collaborative_consumption" title="Collaborative consumption">Collaborative consumption</a></li> <li><a href="/wiki/Giant_Global_Graph" title="Giant Global Graph">Giant Global Graph</a></li> <li><a href="/wiki/Lateral_communication" title="Lateral communication">Lateral communication</a></li> <li><a href="/wiki/Reputation_system" title="Reputation system">Reputation system</a></li> <li><a href="/wiki/Social_bot" title="Social bot">Social bot</a></li> <li><a href="/wiki/Social_graph" title="Social graph">Social graph</a></li> <li><a href="/wiki/Social_media_analytics" title="Social media analytics">Social media analytics</a></li> <li><a href="/wiki/Social_network_analysis_software" title="Social network analysis software">Social network analysis software</a></li> <li><a href="/wiki/Social_networking_potential" class="mw-redirect" title="Social networking potential">Social networking potential</a></li> <li><a href="/wiki/Social_television" title="Social television">Social television</a></li> <li><a href="/wiki/Structural_cohesion" title="Structural cohesion">Structural cohesion</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Economics</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0;background:#F4F0E;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Affinity_fraud" title="Affinity fraud">Affinity fraud</a></li> <li><a href="/wiki/Attention_economy" title="Attention economy">Attention economy</a></li> <li><a href="/wiki/Collaborative_finance" title="Collaborative finance">Collaborative finance</a></li> <li><a href="/wiki/Creator_economy" title="Creator economy">Creator economy</a></li> <li><a href="/wiki/Influencer_marketing" title="Influencer marketing">Influencer marketing</a></li> <li><a href="/wiki/Narrowcasting" title="Narrowcasting">Narrowcasting</a></li> <li><a href="/wiki/Sharing_economy" title="Sharing economy">Sharing economy</a></li> <li><a href="/wiki/Social_commerce" title="Social commerce">Social commerce</a></li> <li><a href="/wiki/Social_sorting" title="Social sorting">Social sorting</a></li> <li><a href="/wiki/Viral_marketing" title="Viral marketing">Viral marketing</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Phenomena</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Algorithmic_radicalization" title="Algorithmic radicalization">Algorithmic radicalization</a></li> <li><a href="/wiki/Community_recognition" title="Community recognition">Community recognition</a></li> <li><a href="/wiki/Complex_contagion" title="Complex contagion">Complex contagion</a></li> <li><a href="/wiki/Computer_addiction" title="Computer addiction">Computer addiction</a></li> <li><a href="/wiki/Consequential_strangers" title="Consequential strangers">Consequential strangers</a></li> <li><a href="/wiki/Friend_of_a_friend" title="Friend of a friend">Friend of a friend</a></li> <li><a href="/wiki/Friending_and_following" title="Friending and following">Friending and following</a></li> <li><a href="/wiki/Friendship_paradox" title="Friendship paradox">Friendship paradox</a></li> <li><a href="/wiki/Influence-for-hire" title="Influence-for-hire">Influence-for-hire</a></li> <li><a href="/wiki/Internet_addiction" class="mw-redirect" title="Internet addiction">Internet addiction</a></li> <li><a href="/wiki/Information_overload" title="Information overload">Information overload</a></li> <li><a href="/wiki/Overchoice" title="Overchoice">Overchoice</a></li> <li><a href="/wiki/Six_degrees_of_separation" title="Six degrees of separation">Six degrees of separation</a></li> <li><a href="/wiki/Social_media_addiction" class="mw-redirect" title="Social media addiction">Social media addiction</a></li> <li><a href="/wiki/Social_media_and_suicide" title="Social media and suicide">Social media and suicide</a></li> <li><a href="/wiki/Social_invisibility" title="Social invisibility">Social invisibility</a></li> <li><a href="/wiki/Social_network_game" title="Social network game">Social network game</a></li> <li><a href="/wiki/Suicide_and_the_Internet" title="Suicide and the Internet">Suicide and the Internet</a></li> <li><a href="/wiki/Tribe_(internet)" title="Tribe (internet)">Tribe</a></li> <li><a href="/wiki/Viral_phenomenon" title="Viral phenomenon">Viral phenomenon</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related topics</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0;background:#F4F0E;"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Friendship_recession" title="Friendship recession">Friendship recession</a></li> <li><a href="/wiki/Peer_pressure" title="Peer pressure">Peer pressure</a></li> 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mw-ui-icon-wikimedia-history mw-ui-icon-wikimedia-wikimedia-history"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only mw-watchlink" id="ca-watchstar-sticky-header" tabindex="-1" data-event-name="watch-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-star mw-ui-icon-wikimedia-wikimedia-star"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-edit-sticky-header" tabindex="-1" data-event-name="wikitext-edit-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-wikiText mw-ui-icon-wikimedia-wikimedia-wikiText"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-ve-edit-sticky-header" tabindex="-1" data-event-name="ve-edit-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-edit mw-ui-icon-wikimedia-wikimedia-edit"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-viewsource-sticky-header" tabindex="-1" data-event-name="ve-edit-protected-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-editLock mw-ui-icon-wikimedia-wikimedia-editLock"></span> <span></span> </a> </div> <div class="vector-sticky-header-buttons"> <button class="cdx-button cdx-button--weight-quiet mw-interlanguage-selector" id="p-lang-btn-sticky-header" tabindex="-1" data-event-name="ui.dropdown-p-lang-btn-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-language mw-ui-icon-wikimedia-wikimedia-language"></span> <span>14 languages</span> </button> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive" id="ca-addsection-sticky-header" tabindex="-1" data-event-name="addsection-sticky-header"><span class="vector-icon mw-ui-icon-speechBubbleAdd-progressive mw-ui-icon-wikimedia-speechBubbleAdd-progressive"></span> <span>Add topic</span> </a> </div> <div class="vector-sticky-header-icon-end"> <div class="vector-user-links"> </div> </div> </div> </div> </div> <div class="mw-portlet mw-portlet-dock-bottom emptyPortlet" id="p-dock-bottom"> <ul> </ul> </div> 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