I found out about the SIGGRAPH site while trying to jog my memory about a paper I remembered reading, but couldn't remember the title. It's from the 2006 conference though, so it doesn't have the presentation online yet, but I did finally remember which paper it was, and thought I'd use my blog to keep a link to it.
Technorati Tags: Computer Graphics
SIGGRAPH has a nifty website that allows you to watch lots of presentations from the 2004 and 2005 conference, including paper presentations and sketches. Lots of good stuff.