XOXO

XOXO (Extensible Open XHTML Outlines) is one of several "microformats" released via the microformats.org site and community, intended for the representation of information in a manner that is human-readable but can still be processed by machines.

The format specifies data giving an outline of a document, concept, etc., in the form of XHTML of a standardized form which can be automatically processed while remaining usable as part of a HTML/XML document.

Links

 * XOXO spec