Anyone interested in OGL stuff this is a pdf file of an older book on OGL but it's a good place to start (I guess).
http://www.gamedev.net/download/redbook.pdf#search=%22redbook.pdf%22
I've never read it, though I probably should, since I have an old bookmark of it :)
There's also an HTML version, if you can't bother downloading ;)
http://www.rush3d.com/reference/opengl-redbook-1.1/