This just in - RDF and OWL Are W3C Recommendations [2] (Slashdot [3]). The discussion following the article contains a host of useful links for further reading, too.

My interest in this links to my research on gatewatching: increasingly we're seeing gatewatcher sites make use of RDF and semantic Web approaches to share their own content - and of course these technologies also help the process of gatewatching itself.