Profile URIs

Examples

David Rivers uses profile URIs throughout his site to implement hCard (in his contact), XFN in his blogroll), and hAtom in his blog)
The West Midland Bird Club in the English Midlands uses the hCard profile on all pages with hCard mark-up. (e.g on the What's New page).
tommorris.org uses a variety of profile URIs based on the GRDDL specification to make it easy for GRDDL-compliant parsers to extract RDF data from embedded microformats including hCard, XFN and vote-links