Microformats

Microformats are emerging metadata schema that use HTML for mark-up. Currently there are microformats for:

• hCalendar - for events
• hCard - for contact information
• hReview(spec) - for reviews
• rel-directory(spec)- for distributed directory creation and inclusion
• rel-nofollow, an attempt to discourage 3rd party content spam (e.g. comment spam)
• rel-tag(spec) - for decentralized tagging (Folksonomy)
• xFolk(spec) - for tagged links
• XFN - for social relationships
• XOXO - for lists and outlines

Microformats