WordPress, the famous weblog engine (powering this site), is getting equipped (in its CVS HEAD version) with a new feature allowing webloggers to post small pieces of metadata (pairs of key + value) with each one of their blog entries. WordPress is going the same way Charles Nepote went with his semantic wiki prototype. We won’t wait a long time before someone comes with a real semantic bloki. It must be a matter of months.
By the way, Archetypes is a new masterpiece of Plone and its references management engine allows the weaving of semantic relationships inbetween Content objects. It just lacks the ability to publish its schema and data as RDF files through Plone URLs… Anyway, Archetypes should soon provide the ability to extend objects schemas at runtime through the web. It means users will be able to add metadata to objects. These features can already be tested with PloneCollectorNG in its latest version (test the CVS version if you can).