Microformats Wiki

microformats are HTML for marking up people, organizations, events, locations, blog posts, products, reviews, resumes, recipes etc. Sites use microformats to publish a standard API that is consumed and used by search engines, browsers, and other web sites. See what-are-microformats for more.
If you are looking for the microformats.org blog, see:
This wiki is the central resource of the microformats community and provides microformats authoring guides, references, specifications, drafts, publishing patterns, research, brainstorming, and issue tracking.
Get started with microformats:
Want to join in and contribute?
This wiki has a number of enhancements to assist development and contributions to microformats. Before you start editing, see the wiki introduction page for instructions.
microformats2 is stable, has a test suite, publishers, and interoperable implementations. Use it on public web pages and developing more parsers and applications.
Current, stable microformats open standard specifications.
If you are implementing a microformats2 parser, see:
microformats2 vocabularies:
Some microformats require only a rel attribute and are widely supported by consuming sites and software.
In addition use well established classic microformats for the primary subject of a page for legacy search engines support.
Drafts are classic microformats which have varying degrees of support by consuming applications. They are stable and yet still open to change based on consuming application support, per the process to become specifications.
Design patterns are common uses of markup across microformats.
If you're tempted to try your hand at writing a microformat please read the process page first! and then take a look at
for details of prior research, analysis of real-world examples, existing formats, and brainstorming of possible new microformats, per the microformats process.
Past specifications, drafts, and exploratory discussions which have either lacked (or lost) wide publishing support, implementation, or have been superceded by newer specs (see also when does it make sense to demote a microformat spec). These may eventually be retired, deprecated, or reincorporated into other exploratory discussions.
The first place to look for examples, code, and test cases is in the pages for each individual microformat. There are only a few cross-cutting tools and services that need to process more than one microformat. That section is intended for editors, parsers, validators, test cases, and other information relevant across multiple microformats.
You may read and edit microformats articles in many other languages:
See also other-languages, and how-to-start-a-new-translation.
microformats.org is a community focused on using an empirical (rather than aspirational) process to research web data & information human publishing behaviors, openly document it on our wiki (http://microformats.org/wiki/), discuss it in IRC, then brainstorm ideas & proposals based on that research for simple formats based on HTML to interoperably represent that information on the web, incrementally implement, and iterate.