Here are a few additonal places on the web that you might find intersting:

In mathematics:
SOS Math
Planet Math
Professor John H. Heinbockel's free tensor calculus text.(You still have to buy the book to get the worked out solutions. If someone knows how to get around this, email me!)

In Physics:
Hyperphysics at Georgia State
Physlink's Physics and Astronomy site
All about circuits--a good electronics refrence.
This is another general physics site.
This site has a qualitative explanation of particle physics for those who know nothing about it.
University of Colorado's Physics 2000 site

Chemistry:
Chemweb's Chemistry site
Search Engine for the Chemical Industry.
Professor Wilner's Chemistry tutorial site.

Some Intersting people:
Chris Snider's Science Fiction site
Jehrico Cain--a competitor
Eric Jarrard--another competitor
Dan Barber--a great mechanic in Buford

The Big Eye--the site that has just about everything, an aimless web-surfers' paradise

Any suggestions?
Email Andrew