The On-Line version of the Physics I text by Zitzewitz: Physics - Principles and Problems User name: PP&P Password: dru78tr5HU Physics I Textbook On-Line
The Physics Classroom - a high school tutorial for introductory physics. Developed by Tom Henderson of Glenbrook North HS in Illinois. A great site! The Physics Classroom Tutorials
ActivPhysics On-Line - computer simulation activities for AP Physics http://wps.aw.com/aw_knight_physics_1/0,8722,1123672-,00.html
Fear of Physics - Tutorials and animations http://www.fearofphysics.com/index1.html
PhUN 2-D Physics Sandbox An entertaining and fun way to play with physics concepts an a "cartoony" way. http://www.phunland.com/wiki/Home
Official U.S. Time - Want to be accurate to less than a second! (Unlike our school clocks) This is the place to go! http://www.time.gov/timezone.cgi?Central/d/-6/java
Amateur astronomy site http://skytonight.com/