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data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Top)</div> </a> </li> <li id="toc-Annotation_of_web_resources" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Annotation_of_web_resources"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Annotation of web resources</span> </div> </a> <ul id="toc-Annotation_of_web_resources-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Web_Annotation_standard" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Web_Annotation_standard"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Web Annotation standard</span> </div> </a> <button aria-controls="toc-Web_Annotation_standard-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Web Annotation standard subsection</span> </button> <ul id="toc-Web_Annotation_standard-sublist" class="vector-toc-list"> <li id="toc-Related_specifications" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Related_specifications"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Related specifications</span> </div> </a> <ul id="toc-Related_specifications-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Web_Annotation_Systems" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Web_Annotation_Systems"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Web Annotation Systems</span> </div> </a> <button aria-controls="toc-Web_Annotation_Systems-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Web Annotation Systems subsection</span> </button> <ul id="toc-Web_Annotation_Systems-sublist" class="vector-toc-list"> <li id="toc-Comparison_of_web_annotation_systems" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Comparison_of_web_annotation_systems"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Comparison of web annotation systems</span> </div> </a> <ul id="toc-Comparison_of_web_annotation_systems-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Discontinued_web_annotation_systems" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Discontinued_web_annotation_systems"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Discontinued web annotation systems</span> </div> </a> <ul id="toc-Discontinued_web_annotation_systems-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">4</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">5</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Further_reading" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Further_reading"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Further reading</span> </div> </a> <ul id="toc-Further_reading-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Table of 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data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-Update plainlinks metadata ambox ambox-content ambox-Update" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Ambox_current_red.svg/42px-Ambox_current_red.svg.png" decoding="async" width="42" height="34" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Ambox_current_red.svg/63px-Ambox_current_red.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Ambox_current_red.svg/84px-Ambox_current_red.svg.png 2x" data-file-width="360" data-file-height="290" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article needs to be <b>updated</b>.<span class="hide-when-compact"> Please help update this article to reflect recent events or newly available information.</span> <span class="date-container"><i>(<span class="date">February 2015</span>)</i></span></div></td></tr></tbody></table> <p><b>Web annotation</b> can refer to online <a href="/wiki/Annotation" title="Annotation">annotations</a> of web resources such as <a href="/wiki/Web_page" title="Web page">web pages</a> or parts of them, or a set of <a href="/wiki/World_Wide_Web_Consortium" title="World Wide Web Consortium">W3C</a> <a href="/wiki/W3C_recommendation" class="mw-redirect" title="W3C recommendation">standards</a> developed for this purpose. The term can also refer to the creations of annotations on the <a href="/wiki/World_Wide_Web" title="World Wide Web">World Wide Web</a> and it has been used in this sense for the annotation tool INCEpTION,<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> formerly WebAnno.<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 a general feature of several tools for <a href="/wiki/Annotation#Text_documents" title="Annotation">annotation in natural language processing</a> or <a href="/wiki/Annotation#Textual_scholarship" title="Annotation">in the philologies</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Annotation_of_web_resources">Annotation of web resources</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Web_annotation&action=edit&section=1" title="Edit section: Annotation of web resources"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>With a web annotation system, a user can add, modify or remove information from a Web resource without modifying the resource itself. The annotations can be thought of as a layer on top of the existing resource, and this annotation layer is usually visible to other users who share the same annotation system. In such cases, the web annotation tool is a type of <a href="/wiki/Social_software" title="Social software">social software</a> tool. For Web-based text annotation systems, see <a href="/wiki/Text_annotation" title="Text annotation">Text annotation</a>. </p><p>Web annotation can be used for the following purposes: </p> <ul><li>to rate a Web resource, such as by its usefulness, user-friendliness, suitability for viewing by minors.</li> <li>to improve or adapt its contents by adding/removing material (like <a href="/wiki/Wiki" title="Wiki">wiki</a>).</li> <li>as a <a href="/wiki/Collaborative_software" title="Collaborative software">collaborative</a> tool, e.g. to discuss the contents of a certain resource.</li> <li>as a medium of artistic or social criticism, by allowing Web users to reinterpret, enrich or protest against institution or ideas that appear on the Web.</li> <li>to quantify transient relationships between information fragments.</li> <li>to save, retain and synthesize selected information.</li></ul> <p>Annotations can be considered an additional layer with respect to comments. Comments are published by the same publisher who hosts the original document. Annotations are added on top of that, but may eventually become comments which, in turn, may be integrated in a further version of the document itself.<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> </p> <div class="mw-heading mw-heading2"><h2 id="Web_Annotation_standard">Web Annotation standard</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Web_annotation&action=edit&section=2" title="Edit section: Web Annotation standard"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In the Web Annotation standard, </p> <style data-mw-deduplicate="TemplateStyles:r1244412712">.mw-parser-output .templatequote{overflow:hidden;margin:1em 0;padding:0 32px}.mw-parser-output .templatequotecite{line-height:1.5em;text-align:left;margin-top:0}@media(min-width:500px){.mw-parser-output .templatequotecite{padding-left:1.6em}}</style><blockquote class="templatequote"><p>[a]n annotation is considered to be a set of connected resources, typically including a body and target, and conveys that the body is related to the target. The exact nature of this relationship changes according to the intention of the annotation, but the body is most frequently somehow "about" the target. (...) The (...) model supports additional functionality, enabling content to be embedded within the annotation, selecting arbitrary segments of resources, choosing the appropriate representation of a resource and providing styling hints to help clients render the annotation appropriately.</p><div class="templatequotecite">— <cite>Robert Sanderson, Paolo Ciccarese, Benjamin Young (eds.), Web Annotation Data Model, W3C Recommendation 23 February 2017, <a rel="nofollow" class="external free" href="https://www.w3.org/TR/annotation-model/">https://www.w3.org/TR/annotation-model/</a></cite></div></blockquote> <p>The basic data structures of Web Annotation (Fig. 1) are </p> <ul><li>target (the element being annotated, e.g., a web document or a part of it),</li> <li>body (the content of the annotation, e.g., a string value), and</li> <li>annotation (the element that serves to relate body and target of an annotation)</li></ul> <figure typeof="mw:File/Frame"><a href="/wiki/File:Web-anno-intro.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/c/cc/Web-anno-intro.png" decoding="async" width="706" height="406" class="mw-file-element" data-file-width="706" data-file-height="406" /></a><figcaption>Fig. 1. Basic view on the Web Annotation data model</figcaption></figure> <p>The body can be a literal value or structured content (a URI). The target can be identified by an URI (e.g., fragment identifiers) and/or a selector that defines a domain-, resource- or application-specific access protocol, e.g., offset-based, XPath-based, etc. </p><p>Web Annotation was standardized on February 23, 2017 with the release of three official Recommendations by the W3C Web Annotation Working Group:<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><sup id="cite_ref-Whaley2017_5-0" class="reference"><a href="#cite_note-Whaley2017-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <ul><li>Web Annotation Data Model<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></li> <li>Web Annotation Vocabulary<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></li> <li>Web Annotation Protocol<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></li></ul> <p>These recommendations were accompanied by additional working group notes that describe their application: </p> <ul><li>Embedding Web Annotations in HTML<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></li> <li>Selectors and States<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></li></ul> <p>The Web Annotation data model is also provided in machine-readable form as the Web Annotation ontology.<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> Note that this ontology defines the Web Annotation namespace (<code><a rel="nofollow" class="external free" href="https://www.w3.org/ns/oa#">https://www.w3.org/ns/oa#</a></code>), and that this namespace is conventionally abbreviated as <code>oa</code>. This is the abbreviation for <i>Open Annotation</i>, a W3C Community Group whose specifications formed the basis for the Web Annotation standard.<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> </p><p>Web Annotation supersedes other standardization initiatives for annotations on the web within the W3C, e.g., the earlier <a href="/wiki/Annotea" title="Annotea">Annotea</a> project discontinued after 2003.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Related_specifications">Related specifications</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Web_annotation&action=edit&section=3" title="Edit section: Related specifications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Web Annotation can be used in conjunction with (or as an alternative to) <a href="/wiki/Fragment_identifier" class="mw-redirect" title="Fragment identifier">fragment identifiers</a> that describe how to address elements within a web document by means of <a href="/wiki/Uniform_Resource_Identifier" title="Uniform Resource Identifier">URIs</a>. These include </p> <ul><li>RFC 5147 (URI fragment identifiers for the text/plain media type)<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup></li> <li>RFC 7111 (URI fragment identifiers for the text/csv media type)<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup></li> <li>RFC 8118 (URI fragment identifiers for the application/pdf media type)<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Scalable_Vector_Graphics" class="mw-redirect" title="Scalable Vector Graphics">SVG</a> fragment identifiers<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/XPointer" title="XPointer">XPointer</a> (for addressing components of XML documents)<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup></li> <li>Media Fragments (for addressing components of media files)<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup></li></ul> <p>Other, non-standardized fragment identifiers are in use, as well, e.g., within the NLP Interchange Format.<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> </p><p>Independently from Web Annotation, more specialized data models for representing annotations on the web have been developed, e.g., the NLP Interchange Format (NIF)<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> for applications in language technology. In early 2020, the <a href="/wiki/W3C" class="mw-redirect" title="W3C">W3C</a> Community Group "Linked Data for Language Technology" launched an initiative to harmonize these vocabularies and to develop a consolidated RDF vocabulary for linguistic annotations on the web.<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Web_Annotation_Systems">Web Annotation Systems</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Web_annotation&action=edit&section=4" title="Edit section: Web Annotation Systems"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Comparison_of_web_annotation_systems">Comparison of web annotation systems</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Web_annotation&action=edit&section=5" title="Edit section: Comparison of web annotation systems"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Many of these systems require software to be installed to enable some or all of the features below. 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body.skin-timeless .mw-parser-output .sort-under-right.sortable.wikitable th.unsortable,html.client-js body.skin-timeless .mw-parser-output .sort-under-center.sortable.wikitable th.headerSort,html.client-js body.skin-timeless .mw-parser-output .sort-under-center.sortable.wikitable th.unsortable{padding-bottom:1.8em}html.client-js .mw-parser-output .static-row-numbers.sort-under.sortable.wikitable thead tr:only-child::before,html.client-js .mw-parser-output .static-row-numbers.sort-under-right.sortable.wikitable thead tr:only-child::before,html.client-js .mw-parser-output .static-row-numbers.sort-under-center.sortable.wikitable thead tr:only-child::before{padding-bottom:1.5em}html.client-js body.skin-timeless .mw-parser-output .static-row-numbers.sort-under.sortable.wikitable thead tr:only-child::before,html.client-js body.skin-timeless .mw-parser-output .static-row-numbers.sort-under-right.sortable.wikitable thead tr:only-child::before,html.client-js body.skin-timeless .mw-parser-output .static-row-numbers.sort-under-center.sortable.wikitable thead tr:only-child::before,html.client-js body.skin-minerva .mw-parser-output .static-row-numbers.sort-under.sortable.wikitable thead tr:only-child::before,html.client-js body.skin-minerva .mw-parser-output .static-row-numbers.sort-under-right.sortable.wikitable thead tr:only-child::before,html.client-js body.skin-minerva .mw-parser-output .static-row-numbers.sort-under-center.sortable.wikitable thead tr:only-child::before{padding-bottom:1.4em}}}</style> </p> <table class="wikitable sortable sort-under"> <tbody><tr> <th>Annotation system</th> <th class="nowrap ts-vertical-header" style=""><div style=""><style data-mw-deduplicate="TemplateStyles:r1221560606">@supports(writing-mode:vertical-rl){.mw-parser-output .ts-vertical-header{line-height:1;max-width:1em;padding:0.4em;vertical-align:bottom;width:1em}html.client-js .mw-parser-output .sortable:not(.jquery-tablesorter) .ts-vertical-header:not(.unsortable),html.client-js .mw-parser-output .ts-vertical-header.headerSort{background-position:50%.4em;padding-right:0.4em;padding-top:21px}.mw-parser-output .ts-vertical-header.is-valign-top{vertical-align:top}.mw-parser-output .ts-vertical-header.is-valign-middle{vertical-align:middle}.mw-parser-output .ts-vertical-header.is-normal{font-weight:normal}.mw-parser-output .ts-vertical-header>*{display:inline-block;transform:rotate(180deg);writing-mode:vertical-rl}@supports(writing-mode:sideways-lr){.mw-parser-output .ts-vertical-header>*{transform:none;writing-mode:sideways-lr}}}</style>Private notes</div></th> <th class="nowrap ts-vertical-header" style=""><div style=""><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1221560606" />Private group notes</div></th> <th class="nowrap ts-vertical-header" style=""><div style=""><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1221560606" />Public notes</div></th> <th class="nowrap ts-vertical-header" style=""><div style=""><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1221560606" />Notification</div></th> <th class="nowrap ts-vertical-header" style=""><div style=""><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1221560606" />Highlighting</div></th> <th class="nowrap ts-vertical-header" style=""><div style=""><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1221560606" />Formatted text</div></th> <th>Archives </th> <th>Viewing annotations</th> <th>API </th> <th>Open Source </th> <th class="nowrap ts-vertical-header" style="max-width:2em; width:2em;"><div style=""><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1221560606" />implements/exports/imports<br />Web annotation standard</div></th> <th>Notes </th></tr> <tr> <td><a href="/wiki/A.nnotate" title="A.nnotate">A.nnotate</a></td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup></td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td> </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No (proprietary) </td> <td style="background: var(--background-color-interactive, #EEE); color: var(--color-base, black); vertical-align: middle; white-space: nowrap; text-align: center;" class="table-Unknown">Unknown</td> <td>Can annotate PDF, ODF, .doc, .docx, images, as well as web pages (but only a limited number in the free version) </td></tr> <tr> <td>Annotorius<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes, via Google Firebase plugin<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> </td> <td> </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes (BSD)<sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> </td> <td>JavaScript image annotation library and plugin to <a href="/wiki/Seadragon_Software" title="Seadragon Software">OpenSeadragon</a>, also supports simple text annotations </td></tr> <tr> <td><a href="/wiki/Diigo" title="Diigo">Diigo</a></td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td> </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No (proprietary) </td> <td style="background: var(--background-color-interactive, #EEE); color: var(--color-base, black); vertical-align: middle; white-space: nowrap; text-align: center;" class="table-Unknown">Unknown</td> <td>Public annotations are only allowed for established<sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Please_clarify" title="Wikipedia:Please clarify"><span title="You can help— (March 2016)">definition needed</span></a></i>]</sup> users. Group tag dictionary feature to encourage tagging consistently within a group. </td></tr> <tr> <td><a href="/wiki/Hypothes.is" title="Hypothes.is">Hypothes.is</a></td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td> </td> <td>Chrome, via.hypothes.is </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes (MIT, BSD) </td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No,<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> but listed on Web Annotation wiki</td> <td>In February 2015, different features were announced,<sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> such as private group annotation, semantic tagging, moderation, etc. Web Annotation integration was discussed in 2014.<sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Org-mode" title="Org-mode">Org-mode</a> (with extensions)</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No<sup id="cite_ref-33" class="reference"><a href="#cite_note-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup></td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No<sup id="cite_ref-34" class="reference"><a href="#cite_note-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup></td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No</td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes</td> <td style="background:#FFC7C7;color:black;vertical-align:middle;text-align:center;" class="table-no">No </td> <td> </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td> </td> <td style="background: var(--background-color-interactive, #EEE); color: var(--color-base, black); vertical-align: middle; white-space: nowrap; text-align: center;" class="table-Unknown">Unknown</td> <td>Emacs-based; requires technical knowledge to set up; not as user-friendly as some other solutions; non-Latin characters allowed in notes but not in tags </td></tr> <tr> <td>Recogito<sup id="cite_ref-35" class="reference"><a href="#cite_note-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td> </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td> </td> <td> </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes (Apache) </td> <td style="background:#9EFF9E;color:black;vertical-align:middle;text-align:center;" class="table-yes">Yes </td> <td>Annotation of named entities, linking with maps and <a href="/wiki/Knowledge_graph" title="Knowledge graph">knowledge graphs</a>, developed by the Pelagios network,<sup id="cite_ref-36" class="reference"><a href="#cite_note-36"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup> popular in <a href="/wiki/Digital_humanities" title="Digital humanities">Digital Humanities</a> </td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Discontinued_web_annotation_systems">Discontinued web annotation systems</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Web_annotation&action=edit&section=6" title="Edit section: Discontinued web annotation systems"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444" /><table class="plainlinks metadata ambox mbox-small-left ambox-notice" role="presentation" style="width: auto;"><tbody><tr><td class="mbox-image"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/1/1d/Information_icon4.svg/20px-Information_icon4.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/1/1d/Information_icon4.svg/30px-Information_icon4.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/1/1d/Information_icon4.svg/40px-Information_icon4.svg.png 2x" data-file-width="620" data-file-height="620" /></span></span></td><td class="mbox-text" style="width: auto;"><div class="mbox-text-span">This list is <a href="/wiki/Wikipedia:WikiProject_Lists#Incomplete_lists" title="Wikipedia:WikiProject Lists">incomplete</a>; you can help by <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Web_annotation&action=edit">adding missing items</a>. <span class="date-container"><i>(<span class="date">February 2011</span>)</i></span></div></td></tr></tbody></table> <table class="wikitable sortable"> <tbody><tr> <th>System</th> <th>Notes</th> <th>Date Discontinued </th></tr> <tr> <td>Mosaic Browser </td> <td>An early version of the Mosaic browser was tested with collaborative annotation feature in 1993<sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup> but never passed the test state. </td> <td>Never passed the test state </td></tr> <tr> <td>CritLink </td> <td>Perhaps the earliest web annotation system. Developed in 1997–98 by Ka-Ping Yee of the University of California.<sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> CritLink worked as an HTML "mediator", hence not requiring additional software or browser extensions but having limited support for modern <a href="/wiki/JavaScript" title="JavaScript">JavaScript</a>-driven websites. </td> <td> </td></tr> <tr> <td><a href="/wiki/Annotea" title="Annotea">Annotea</a> </td> <td>A <a href="/wiki/W3C" class="mw-redirect" title="W3C">W3C</a> project that tried to establish a standard for web annotation. Annotea was conceived as part of the <a href="/wiki/Semantic_web" class="mw-redirect" title="Semantic web">semantic web</a>. According to the website, Annotea development stalled in October 2005.<sup id="cite_ref-39" class="reference"><a href="#cite_note-39"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup> </td> <td> </td></tr> <tr> <td><a href="/wiki/ThirdVoice" class="mw-redirect" title="ThirdVoice">ThirdVoice</a> </td> <td>A system launched in 1999. It was targeted by a campaign called Say No to TV,<sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup> led by independent web hosts which likened ThirdVoice to "Web graffiti."<sup id="cite_ref-41" class="reference"><a href="#cite_note-41"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup> It was shut in April 2001 because it couldn't generate enough advertising revenue to stay in business.<sup id="cite_ref-42" class="reference"><a href="#cite_note-42"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup> </td> <td>April 2001 </td></tr> <tr> <td><a href="/wiki/Delicious_(website)" title="Delicious (website)">Delicious</a> </td> <td>Founded in 2003 and provided cloud bookmarks with optional descriptions (a form of annotation) of up to 1000 characters. It was rumoured that it would be shut down in 2010, but it was only actually finally shut down in 2017 when it was acquired by Pinboard, a competitor. </td> <td>2017 </td></tr> <tr> <td>Wikalong </td> <td>A Firefox plugin created in 2004 that provided a publicly editable mediawiki page in the margin of any webpage. (It was later accessible in other browsers via a bookmarklet.) Common uses were note-taking and discussion about the website. On Google, the Wikalong margin provided a variety of useful tips and shortcuts for searching. The project was discontinued in 2009 when the storage wiki went offline. It had been suffering from <a href="/wiki/Spamdexing" title="Spamdexing">link spam abuse</a>.<sup id="cite_ref-43" class="reference"><a href="#cite_note-43"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-44" class="reference"><a href="#cite_note-44"><span class="cite-bracket">[</span>44<span class="cite-bracket">]</span></a></sup> </td> <td>2009 </td></tr> <tr> <td><a href="/w/index.php?title=Fleck*&action=edit&redlink=1" class="new" title="Fleck* (page does not exist)">Fleck*</a> </td> <td>Launched in 2005 with much publicity as a stick-it notes application for the web. A patent, funding and marketing didn't stop it from failing. Discontinued in 2010.<sup id="cite_ref-45" class="reference"><a href="#cite_note-45"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup> </td> <td>2010 </td></tr> <tr> <td><a href="/wiki/Stet_(software)" title="Stet (software)">stet</a> </td> <td>Stet was the <a href="/wiki/Gplv3" class="mw-redirect" title="Gplv3">Gplv3</a> comment system.<sup id="cite_ref-46" class="reference"><a href="#cite_note-46"><span class="cite-bracket">[</span>46<span class="cite-bracket">]</span></a></sup> </td> <td> </td></tr> <tr> <td>Crocodoc </td> <td>Launched in 2007, dabbled in web page annotation as part of its broader mission. It was originally developed in Adobe Flash. It was acquired by Box.com in 2013<sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">[</span>47<span class="cite-bracket">]</span></a></sup> and the web annotation side of it was shut down two years later.<sup id="cite_ref-48" class="reference"><a href="#cite_note-48"><span class="cite-bracket">[</span>48<span class="cite-bracket">]</span></a></sup> </td> <td>2009 </td></tr> <tr> <td><a href="/wiki/Blerp" class="mw-redirect" title="Blerp">Blerp</a> </td> <td>Launched in 2009. A multimedia, extensible tool for annotating web pages with widgets viewable by any other Blerp user. </td> <td> </td></tr> <tr> <td><a href="/wiki/Google_Sidewiki" title="Google Sidewiki">Google Sidewiki</a> </td> <td>Launched in 2009. A part of Google Toolbar that allowed users to write comments alongside any web page. It was discontinued in December 2011. </td> <td>December 2011 </td></tr> <tr> <td><a href="/wiki/SharedCopy" title="SharedCopy">SharedCopy</a> </td> <td>An AJAX based web annotation tool that allowed users to mark-up, highlight, draw, annotate, cache, sticky-note and finally share any website. </td></tr> <tr> <td><a href="/wiki/Genius_(company)#News_Genius" title="Genius (company)">Genius Web Annotator</a> </td> <td>Formerly knows as News Genius, launched in 2016.<sup id="cite_ref-49" class="reference"><a href="#cite_note-49"><span class="cite-bracket">[</span>49<span class="cite-bracket">]</span></a></sup> As of May 2022, the Chrome and Wordpress extensions are discontinued, and the bookmarklet provided on <a rel="nofollow" class="external text" href="https://genius.com/web-annotator">the official website</a> does not work. As of August 2022, it is not possible to log in and leave new annotations. </td> <td> </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=Web_annotation&action=edit&section=7" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Comparison_of_notetaking_software" class="mw-redirect" title="Comparison of notetaking software">Comparison of notetaking software</a></li> <li><a href="/wiki/Social_bookmarking" title="Social bookmarking">Social bookmarking</a></li> <li>Some <a href="/wiki/Reference_management_software" title="Reference management software">reference management software</a> packages also support web annotations</li> <li><a href="/wiki/Backlinks" class="mw-redirect" title="Backlinks">Backlinks</a></li> <li><a href="/wiki/Online_deliberation" title="Online deliberation">Online deliberation</a></li> <li><a href="/wiki/Perusall" title="Perusall">Perusall</a></li> <li><a href="/wiki/Folksonomy" title="Folksonomy">Folksonomy</a></li> <li><a href="/wiki/Metadata" title="Metadata">Metadata</a></li> <li><a href="/wiki/Threaded_discussion" class="mw-redirect" title="Threaded discussion">Threaded discussion</a></li> <li><a href="/wiki/Virtual_graffiti" title="Virtual graffiti">Virtual graffiti</a></li> <li><a href="/wiki/Comparison_of_software_saving_Web_pages_for_offline_use" title="Comparison of software saving Web pages for offline use">Comparison of software saving Web pages for offline use</a></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=Web_annotation&action=edit&section=8" 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"><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 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Site.nlp2rdf.org<span class="reference-accessdate">. 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Retrieved <span class="nowrap">2023-10-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=annotorious.github.io&rft.atitle=Annotorious+%7C+About&rft_id=https%3A%2F%2Fannotorious.github.io%2Fabout%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-28"><span class="mw-cite-backlink"><b><a href="#cite_ref-28">^</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://recogito.github.io/annotorious/getting-started/web-annotation">"Annotorious & Web Annotation"</a>. <i>recogito.github.io</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-10-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=recogito.github.io&rft.atitle=Annotorious+%26+Web+Annotation&rft_id=https%3A%2F%2Frecogito.github.io%2Fannotorious%2Fgetting-started%2Fweb-annotation&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-29"><span class="mw-cite-backlink"><b><a href="#cite_ref-29">^</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://h.readthedocs.io/en/latest/api-reference/v1/">"Hypothesis API documentation (v1)"</a>. <i>h.readthedocs.io</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-10-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=h.readthedocs.io&rft.atitle=Hypothesis+API+documentation+%28v1%29&rft_id=https%3A%2F%2Fh.readthedocs.io%2Fen%2Flatest%2Fapi-reference%2Fv1%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-30"><span class="mw-cite-backlink"><b><a href="#cite_ref-30">^</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://hypothes.is/roadmap/">"Trello"</a>. <i>hypothes.is</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=hypothes.is&rft.atitle=Trello&rft_id=https%3A%2F%2Fhypothes.is%2Froadmap%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-31"><span class="mw-cite-backlink"><b><a href="#cite_ref-31">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFbigbluehat2014" class="citation web cs1">bigbluehat (2014-10-15). <a rel="nofollow" class="external text" href="https://web.hypothes.is/blog/open-annotation-rdfa-using-hypothes-is-json/">"Open Annotation RDFa using Hypothes.is JSON"</a>. <i>Hypothesis</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-10-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Hypothesis&rft.atitle=Open+Annotation+RDFa+using+Hypothes.is+JSON&rft.date=2014-10-15&rft.au=bigbluehat&rft_id=https%3A%2F%2Fweb.hypothes.is%2Fblog%2Fopen-annotation-rdfa-using-hypothes-is-json%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-32"><span class="mw-cite-backlink"><b><a href="#cite_ref-32">^</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://www.w3.org/annotation/wiki/Implementations">"Implementations - Web Annotation Wiki"</a>. <i>www.w3.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-10-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=www.w3.org&rft.atitle=Implementations+-+Web+Annotation+Wiki&rft_id=https%3A%2F%2Fwww.w3.org%2Fannotation%2Fwiki%2FImplementations&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-33"><span class="mw-cite-backlink"><b><a href="#cite_ref-33">^</a></b></span> <span class="reference-text">Technically, public annotations are possible via the "publish to HTML" feature of org mode -- but no method for notifications or discovery of public annotations written by others is currently known.</span> </li> <li id="cite_note-34"><span class="mw-cite-backlink"><b><a href="#cite_ref-34">^</a></b></span> <span class="reference-text">But local annotations can be exposed to a firefox browser using <a rel="nofollow" class="external text" href="http://orgmode.org/worg/org-devel.html">Fireforg</a>.</span> </li> <li id="cite_note-35"><span class="mw-cite-backlink"><b><a href="#cite_ref-35">^</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://recogito.pelagios.org/">"Semantic Annotation without the pointy brackets"</a>. <i>recogito.pelagios.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-10-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=recogito.pelagios.org&rft.atitle=Semantic+Annotation+without+the+pointy+brackets&rft_id=https%3A%2F%2Frecogito.pelagios.org%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-36"><span class="mw-cite-backlink"><b><a href="#cite_ref-36">^</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://pelagios.org/">"Welcome to Pelagios Network"</a>. <i>pelagios.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-10-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=pelagios.org&rft.atitle=Welcome+to+Pelagios+Network&rft_id=https%3A%2F%2Fpelagios.org%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-37"><span class="mw-cite-backlink"><b><a href="#cite_ref-37">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFAndreessen1993" class="citation web cs1">Andreessen, Marc (1993-05-31). <a rel="nofollow" class="external text" href="http://1997.webhistory.org/www.lists/www-talk.1993q2/0416.html">"group annotation server guinea pigs?"</a>. <i>webhistory.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2017-11-08</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=webhistory.org&rft.atitle=group+annotation+server+guinea+pigs%3F&rft.date=1993-05-31&rft.aulast=Andreessen&rft.aufirst=Marc&rft_id=http%3A%2F%2F1997.webhistory.org%2Fwww.lists%2Fwww-talk.1993q2%2F0416.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-38"><span class="mw-cite-backlink"><b><a href="#cite_ref-38">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFYee2002" class="citation web cs1">Yee, Ka-Ping (2002). "CritLink: Advanced Hyperlinks Enable Public Annotation on the Web". <a href="/wiki/CiteSeerX" title="CiteSeerX">CiteSeerX</a>: <span class="url"><a rel="nofollow" class="external text" href="http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.5.5050">10.1.1.5.5050</a></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=CritLink%3A+Advanced+Hyperlinks+Enable+Public+Annotation+on+the+Web&rft.date=2002&rft.aulast=Yee&rft.aufirst=Ka-Ping&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span> <span class="cs1-visible-error citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_web" title="Template:Cite web">cite web</a>}}</code>: </span><span class="cs1-visible-error citation-comment">Missing or empty <code class="cs1-code">|url=</code> (<a href="/wiki/Help:CS1_errors#cite_web_url" title="Help:CS1 errors">help</a>)</span></span> </li> <li id="cite_note-39"><span class="mw-cite-backlink"><b><a href="#cite_ref-39">^</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://www.w3.org/2001/Annotea/">"Annotea project"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Annotea+project&rft_id=https%3A%2F%2Fwww.w3.org%2F2001%2FAnnotea%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-40"><span class="mw-cite-backlink"><b><a href="#cite_ref-40">^</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/20010405170639/http://worldzone.net/internet/pixelsnttv/index.html">"Say NO To Third Voice! - WEBMASTERS UNITE!!"</a>. Archived from <a rel="nofollow" class="external text" href="http://worldzone.net/internet/pixelsnttv/index.html">the original</a> on April 5, 2001.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Say+NO+To+Third+Voice%21+-+WEBMASTERS+UNITE%21%21&rft_id=http%3A%2F%2Fworldzone.net%2Finternet%2Fpixelsnttv%2Findex.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-41"><span class="mw-cite-backlink"><b><a href="#cite_ref-41">^</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/20011121120524/https://www.wired.com/news/technology/0,1282,20101,00.html">"The Web's New Graffiti?"</a>. Archived from <a rel="nofollow" class="external text" href="https://www.wired.com/news/technology/0,1282,20101,00.html">the original</a> on November 21, 2001.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=The+Web%27s+New+Graffiti%3F&rft_id=https%3A%2F%2Fwww.wired.com%2Fnews%2Ftechnology%2F0%2C1282%2C20101%2C00.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-42"><span class="mw-cite-backlink"><b><a href="#cite_ref-42">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://archive.wired.com/techbiz/media/news/2001/04/42803?currentPage=all">Third Voice Trails Off</a>, <i>Wired News</i>, April 4, 2001</span> </li> <li id="cite_note-43"><span class="mw-cite-backlink"><b><a href="#cite_ref-43">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://addons.mozilla.org/en-US/firefox/addon/wikalong/">Wikalong Firefox Addon</a>, Oct 1, 2006</span> </li> <li id="cite_note-44"><span class="mw-cite-backlink"><b><a href="#cite_ref-44">^</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://www.wikalong.org/">"SEO – SEO-Optimierung"</a>. <i>www.wikalong.org</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=www.wikalong.org&rft.atitle=SEO+%E2%80%93+SEO-Optimierung&rft_id=http%3A%2F%2Fwww.wikalong.org%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-45"><span class="mw-cite-backlink"><b><a href="#cite_ref-45">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://thenextweb.com/socialmedia/2010/05/10/farewell-fleck-com/">Farewell Fleck.com, "The Next Web"</a>, May 10, 2010</span> </li> <li id="cite_note-46"><span class="mw-cite-backlink"><b><a href="#cite_ref-46">^</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://gplv3.fsf.org/wiki/index.php/Comment_system">"Comment system"</a>. <a href="/wiki/Free_Software_Foundation" title="Free Software Foundation">Free Software Foundation</a>. 11 May 2011<span class="reference-accessdate">. Retrieved <span class="nowrap">28 July</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Comment+system&rft.pub=Free+Software+Foundation&rft.date=2011-05-11&rft_id=http%3A%2F%2Fgplv3.fsf.org%2Fwiki%2Findex.php%2FComment_system&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-47"><span class="mw-cite-backlink"><b><a href="#cite_ref-47">^</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://venturebeat.com/2013/05/09/box-acquires-crocodoc-to-turn-all-those-docs-you-upload-into-html5-masterpieces/">"Box acquires Crocodoc to turn all those docs you upload into HTML5 masterpieces"</a>. <a href="/wiki/VentureBeat" title="VentureBeat">VentureBeat</a>. 9 May 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">12 June</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Box+acquires+Crocodoc+to+turn+all+those+docs+you+upload+into+HTML5+masterpieces&rft.pub=VentureBeat&rft.date=2013-05-09&rft_id=https%3A%2F%2Fventurebeat.com%2F2013%2F05%2F09%2Fbox-acquires-crocodoc-to-turn-all-those-docs-you-upload-into-html5-masterpieces%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-48"><span class="mw-cite-backlink"><b><a href="#cite_ref-48">^</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://venturebeat.com/2015/08/05/box-is-shutting-down-crocodoc-personal-and-webnotes-on-november-1/">"Box is Shutting Down Crocodoc Personal and Webnotes on November 1"</a>. <a href="/wiki/VentureBeat" title="VentureBeat">VentureBeat</a>. 5 August 2015<span class="reference-accessdate">. Retrieved <span class="nowrap">12 June</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Box+is+Shutting+Down+Crocodoc+Personal+and+Webnotes+on+November+1&rft.pub=VentureBeat&rft.date=2015-08-05&rft_id=https%3A%2F%2Fventurebeat.com%2F2015%2F08%2F05%2Fbox-is-shutting-down-crocodoc-personal-and-webnotes-on-november-1%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> <li id="cite_note-49"><span class="mw-cite-backlink"><b><a href="#cite_ref-49">^</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://genius.com/a/news-genius">"News Genius"</a>. <i>Genius</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2022-05-27</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Genius&rft.atitle=News+Genius&rft_id=https%3A%2F%2Fgenius.com%2Fa%2Fnews-genius&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Web_annotation&action=edit&section=9" title="Edit section: Further reading"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFSandersonVan_de_Sompel2010" class="citation conference cs1">Sanderson, Robert; <a href="/wiki/Herbert_Van_de_Sompel" title="Herbert Van de Sompel">Van de Sompel, Herbert</a> (2010). "Proceedings of the 10th annual joint conference on Digital libraries - JCDL '10". <i>Proceedings of JCDL '10, Joint Conference on Digital Libraries</i>. <a href="/wiki/Association_for_Computing_Machinery" title="Association for Computing Machinery">Association for Computing Machinery</a>. pp. <span class="nowrap">1–</span>10. <a href="/wiki/ArXiv_(identifier)" class="mw-redirect" title="ArXiv (identifier)">arXiv</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://arxiv.org/abs/1003.2643">1003.2643</a></span>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1145%2F1816123.1816125">10.1145/1816123.1816125</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781450300858" title="Special:BookSources/9781450300858"><bdi>9781450300858</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=conference&rft.atitle=Proceedings+of+the+10th+annual+joint+conference+on+Digital+libraries+-+JCDL+%2710&rft.btitle=Proceedings+of+JCDL+%2710%2C+Joint+Conference+on+Digital+Libraries&rft.pages=%3Cspan+class%3D%22nowrap%22%3E1-%3C%2Fspan%3E10&rft.pub=Association+for+Computing+Machinery&rft.date=2010&rft_id=info%3Aarxiv%2F1003.2643&rft_id=info%3Adoi%2F10.1145%2F1816123.1816125&rft.isbn=9781450300858&rft.aulast=Sanderson&rft.aufirst=Robert&rft.au=Van+de+Sompel%2C+Herbert&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+annotation" class="Z3988"></span></li> <li>Signer, Beat: <a rel="nofollow" class="external text" href="https://www.academia.edu/193985/An_Architecture_for_Open_Cross-Media_Annotation_Services">"An Architecture for Open Cross-Media Annotation Services"</a>, Proceedings of WISE 2009, 10th International Conference on Web Information Systems Engineering, Poznan, Poland, October 2009</li> <li><a rel="nofollow" class="external text" href="http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.101.1343">On Web Annotations: Promises and Pitfalls of Current Web Infrastructure. Venu Vasudevan and Mark Palmer, Proceedings of the 32nd Hawaii International Conference on System Sciences - 1999</a></li> <li><a rel="nofollow" class="external text" href="http://www.math.grin.edu/~rebelsky/Blazers/Annotations/Summer1999/Papers/survey_paper.html">A Survey of Web Annotation Systems. Rachel M. Heck, Sarah M. Luebke, Chad H. Obermark. 1999.</a></li> <li><a rel="nofollow" class="external text" href="http://www9.org/final-posters/poster46.html">New ways of using Web annotations. Laurent Denoue, Laurence Vignollet.</a></li> <li>Ricardo Kawase, George Papadakis, Eelco Herder, Wolfgang Nejdl: <a rel="nofollow" class="external text" href="http://dl.acm.org/citation.cfm?doid=1810617.1810624">The impact of bookmarks and annotations on refinding information. ACM Hypertext Conference 2010: 29-34</a></li> <li>Ricardo Kawase, Eelco Herder, George Papadakis, Wolfgang Nejdl: <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1007/978-3-642-22810-0_7">In-Context Annotations for Refinding and Sharing</a>. <i><a href="/wiki/Webist" title="Webist">Webist</a></i> (Selected Papers) 2010: 85-100</li></ul> <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=Web_annotation&action=edit&section=10" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://www.w3.org/annotation/">W3C Web Annotation Working Group</a> Recommendations (as of February 23, 2017):</li></ul> <ol><li><a rel="nofollow" class="external text" href="http://www.w3.org/TR/annotation-model/">Web Annotation Data Model</a></li> <li><a rel="nofollow" class="external text" href="http://www.w3.org/TR/annotation-vocab/">Web Annotation Vocabulary</a></li> <li><a rel="nofollow" class="external text" href="https://www.w3.org/TR/annotation-protocol/">Web Annotation Protocol</a></li></ol> <ul><li><a rel="nofollow" class="external text" href="https://www.w3.org/annotation/diagrams/annotation-architecture.svg">Web Annotation Architecture</a>, W3C's interactive illustration</li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Web_annotation&oldid=1280246672">https://en.wikipedia.org/w/index.php?title=Web_annotation&oldid=1280246672</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Web_annotation" title="Category:Web annotation">Web annotation</a></li><li><a href="/wiki/Category:Social_software" title="Category:Social software">Social software</a></li><li><a href="/wiki/Category:Web_software" title="Category:Web software">Web software</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:CS1_errors:_missing_periodical" title="Category:CS1 errors: missing periodical">CS1 errors: missing periodical</a></li><li><a href="/wiki/Category:CS1_errors:_requires_URL" title="Category:CS1 errors: requires URL">CS1 errors: requires URL</a></li><li><a href="/wiki/Category:Wikipedia_articles_in_need_of_updating_from_February_2015" title="Category:Wikipedia articles in need of updating from February 2015">Wikipedia articles in need of updating from February 2015</a></li><li><a href="/wiki/Category:All_Wikipedia_articles_in_need_of_updating" title="Category:All Wikipedia articles in need of updating">All Wikipedia articles in need of updating</a></li><li><a href="/wiki/Category:Wikipedia_articles_needing_clarification_from_March_2016" title="Category:Wikipedia articles needing clarification from March 2016">Wikipedia articles needing clarification from March 2016</a></li><li><a href="/wiki/Category:Incomplete_lists_from_February_2011" title="Category:Incomplete lists from February 2011">Incomplete lists from February 2011</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 13 March 2025, at 13:02<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. 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