I could spend hours on end surfing the web. In fact, I do. What a fine way to get behind on your work. I've assembled a pretty massive collection of links and it's growing daily. Check 'em out.

Brian's Bookmarks
Travel Virtually Anywhere!

Volume 1
Biology, Computers, Crime Scene Investigation, Cryonics, Electric Cars, Energy, Entomology, Genetics, Medical, Nanotechnology

Volume 1a
Robotics, Artificial Intellligence, Micro Air Vehicles

Volume 2
Space, Cassini & Gravity Assists, Space Images, Space Private Enterprise, UFOs

Volume 3
Science, Science News, Skeptics

Volume 4
Education

Volume 5
Entertainment