The site for OpenGL beginners and intermediates (examples for different platforms), see nehe.gamedev.net.
A very good tutorial site for beginners featuring C/C++, OpenGL, DirectX, game tutorials, and many more, have a look at www.gametutorials.com.
The site for beginners and experts, go to www.gamasutra.com.
Another excellent site for physics and algorithms, switch to www.flipcode.com.
Are you looking for complete physics libraries?
Here is a good one with some nice demos, tutorials, and links to some pretty games as well. Visit www.tokamakphysics.com.
Take a deep breath and dip into I-Collide, a very good collision detection library developed at the University of North Carolina.
O.k., a link list can never be completer, but here are some good references to look for.
Webopedia, for computer and information technology concerns.
Britannica, ENCYCLOPÆDIA Britannica Online. Any further questions?.