wp-RDFa brings the semantic Web to WordPress
wp-RDFa brings the Semantic Web to your WordPress blog. Currently this plugin supports FOAF and the Dublin Core.
FOAF is Friend of a Friend, and can be used to relate your personal information to your blog. It can also be used to relate other users of your blog to you building up a semantic map of your relationships in the online world.
wp-RDFa uses the Dublin Core markup to tag posts with the title, creator and date elements.
wp-RDFa has a settings page to allow you customise your relationships with other users of your WordPress site. See the screenshot for a preview of the admin panel.