This is a session by Dustin Cote from MadCamp (aka BarCampMadison the 4th) titled “Semantic Web / Web 3.0”
Dustin mentioned that you can see the Semantic Web Meetup site for the slides.
You can also download an MP3 file if you’d like. (And for our freedom loving friends, enjoy an Ogg file.)
Also, if you want to get all of the audio automagically downloaded podcasting style, subscribe to the feed.