Semantic Search - Faceted Search and Web 3.0 for Drupal

Looking for a way to automatically create meta data?

A new web service has launched which generates RDF for any text you send along. The semantic web is now one step closer to being something real and usable.

I'm still looking into it - looks like there are some Ruby and Java sample applications.

The Drupal post which alerted me to it:
http://groups.drupal.org/node/8801

Open Calais:
http://opencalais.mashery.com/Overview