rel-license: Difference between revisions
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=== Copyright === | === Copyright === | ||
Per the public domain release on [[User:Tantek|my user page]], this specification is released into the public domain. | |||
=== Patents === | === Patents === | ||
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== Abstract == | == Abstract == | ||
Rel-License is one of several MicroFormats. By adding <code>rel="license"</code> to a hyperlink, a page indicates that the destination of that hyperlink is license for the current page. E.g. with the following hyperlink: | Rel-License is one of several MicroFormats. By adding <code>rel="license"</code> to a hyperlink, a page indicates that the destination of that hyperlink is license for the current page. E.g. with the following hyperlink: | ||
Revision as of 18:24, 18 July 2007
rel="license"
Rel-License is a simple, open, format for indicating content licenses which is embedable in (X)HTML, Atom, RSS, and arbitrary XML. Rel-License is one of several microformat open standards.
Specification 2005-02-06
Author
Tantek Çelik, Technorati, Inc. (formerly of Microsoft Corporation)
Copyright
Per the public domain release on my user page, this specification is released into the public domain.
Patents
This specification is subject to a royalty free patent policy, e.g. per the W3C Patent Policy, and IETF RFC3667 & RFC3668.
Abstract
Rel-License is one of several MicroFormats. By adding rel="license" to a hyperlink, a page indicates that the destination of that hyperlink is license for the current page. E.g. with the following hyperlink:
<a href="http://creativecommons.org/licenses/by/2.0/" rel="license">cc by 2.0</a>
the author indicates that the page is licensed under a Creative Commons 2.0 Attribution Required license.
Multiple Licenses
Multiple such rel="license" hyperlinks indicate that the page is available under any of the referred licenses. E.g. the following hyperlinks could be used to declare that a page is available under either a Creative Commons 2.0 Attribution Required license or the Apache 2.0 license:
<a href="http://creativecommons.org/licenses/by/2.0/" rel="license">cc by 2.0</a> <a href="http://www.apache.org/licenses/LICENSE-2.0" rel="license">Apache 2.0</a>
XMDP profile
<dl class="profile">
<dt id="rel">rel</dt>
<dd><p>
<a rel="help" href="http://www.w3.org/TR/html401/struct/links.html#adef-rel">
HTML4 definition of the 'rel' attribute.</a>
Here is an additional value.</p>
<dl>
<dt id="license">license</dt>
<dd>Indicates that the referred resource is a license for the referring page.</dd>
</dl>
</dd>
</dl>
Implementations
- Dreamweaver Extension suite from the Web Standards Project enables the authoring of rel-license links from within Dreamweaver 8. Includes (cc) defaults.
- pnh_mf is a plugin for Textpattern that supports embedding rel license and other microformats in templates and blog posts. Written by Chris Casciano.
- Creative Commons (cc) license chooser
- Yahoo! (cc) search
- Google "Usage Rights" search
List of Licenses
References
Normative References
Informative References
- 20040211 rel="license" first proposed in presentation real world semantics at 2004 O'Reilly Emerging Technologies Conference, San Diego, CA, USA.
- 20040225 Thorough discussion of rel="license" including advantages and presentation possibilities.
- Creative Commons 2.0 By (Attribution Required) license
- Apache 2.0 license
- Contributed from http://developers.technorati.com/wiki/RelLicense
- Know your rel-license at Microformatique
see also
- rellicense-issues - issues which have been raised with this microformat.
- rel-faq