http://www.arcsynthesis.org/gltut/ is really good and the 4th edition of the OpenGL super bible has been declared better then previous and the most recent one, but it is a tad older, but it gets you all the valuable knowledge.

Check out also:

http://www.glprogramming.com/red/

This lecture is still up. Worth check out http://www.cs.cmu.edu/afs/cs/academic/class/15462-f10/www/

http://openglbook.com/the-book/

Before you do this, make sure you have at least a decent/firm understanding of 3D mathematics.  I am currently reading http://www.amazon.com/Interactive-Computer-Graphics-Top-Down-Shader-Based/dp/0132545233  to get some deep knowledge before i completely dive into OpenGL

http://www.arcsynthesis.org/gltut/ is really good and the 4th edition of the OpenGL super bible has been declared better then previous and the most recent one, but it is a tad older, but it gets you all the valuable knowledge.

Check out also:

http://www.glprogramming.com/red/

This lecture is still up. Worth check out http://www.cs.cmu.edu/afs/cs/academic/class/15462-f10/www/

http://openglbook.com/the-book/

http://www.arcsynthesis.org/gltut/ is really good and the 4th edition of the OpenGL super bible has been declared better then previous and the most recent one, but it is a tad older, but it gets you all the valuable knowledge.