Fermilab's Lecture Series

A whack of information is available at Fermilab's site -- animations, streaming video / lecture series and small programs that simulate physics phenomena. The site also contains a rich offering of still images -- photographs and illustrations. I especially like the lecture series, which contains PowerPoint slides accompanied by the streaming RealVideo presentation. Cool presentations:

Einstein's Unfinished Symphony: Sounds from the Distant Universe

The Search for Extra Dimensions