Vectors, matrices, point-in-poly test, lines intersection, etc.
Chris Hecker's Physics References
(last update 12.December 2007 22:16)
Homepage of a famous guy:D
Bullet forums
(last update 24.November 2007 23:25)
Forums related to the Bullet Physics engine, but it gathers a lot of expirienced guys together.
GPhysics blog
(last update 12.December 2007 22:18)
Blog by Erin Catto, creator of the Box2D physics engine.
GameDev.net forums
(last update 24.November 2007 23:22)
The best practice is usually to search these forums first. It is worth the time - if you find what you are looking for, you will certainly find many unrelated but very interesting threads:)
David Baraff
(last update 2.December 2007 13:47)
If you are studying physics, you might understand his work :)
I currently don't much.
Another physics resources
(last update 27.November 2007 13:8)
Just found this after I completed this project :/