Ben's talk was a real treat. He are some resources related to the talk that you might like.
Slightly older version of the slides...
http://www.cs.umd.edu/hcil/pubs/presentations/InfoVizKnowDiscovery-NASA.htm
Ben was filmed doing a similar talk at a French University shortly before his Cambridge Talk. You can get that here...
http://www.digiteo.fr/Digiteo_rediffusion_seminairebenshneiderman_2009
Handouts
HCI Websites Handouts
Book flyer - Designing the User Interface: Strategies for Effective Human-Computer Interaction
3 Websites that keep Ben engaged for hours
http://infosthetics.com/
http://flowingdata.com/
http://dataspora.com/blog/about/