I did a brief talk last night on the semantic web at our LUG. Mainly slagging it off, to be honest with you, because I don’t think it’ll work (and I cribbed a lot of excellent discussion on this point from Clay Shirky and Cory Doctorow and Mark Pilgrim and others). The “slides of the talk, ‘The Semantic Web: what (is it) and why (should you care)”:http://www.kryogenix.org/code/the-semantic-web/the-semantic-web.html can be read online. They’re pretty sparse, though; there are no notes, because I did it off the top of my head. Sorry about that.