How should I start to learn OpenGL?

I really want to learn how to use OpenGL. I would like to code for every OS. I have VC++ and im running win 2000. Can someone tell me the best place to learn OpenGL?

thx

goto nehe.gamedev.net download the large .pdf tutorials, and start reading, the redbook is in there and thats a good place to start.

my site has some tutorials aimed at the newbie.

home.earthlink.net/~eberkain/