Where can I get OGL reference manual online?

I even visited SGI’s site,but it’s not available online.Where can I find one,please?

Or do you have some other good materials and e-books that are suitable for a programming’s use.I’ve downloaded ‘OpenGL 1.5 spec’ and OpenGL Redbook already.But these don’t meet my needs in some situations.Thank you!
Sorry,my English is not fluent.

http://www.3dlabs.com/support/developer/index.htm
There you’ll find the OpenGL and WGL Manual Pages in HTML and PDF.

If it didn’t come with your compiler you can use http://msdn.microsoft.com/library/default.asp?url=/library/en-us/opengl/apxb4_82lh.asp

Programming guide also available here:
http://fly.cc.fer.hr/~unreal/theredbook/

Thank you.They are good ones.
I’d like to make friends with you.