Art of the Title / Quantum of Solace [jm]
www.artofthetitle.com is a vast collection of the best movie title sequences, both old and new, often with additional material like interviews with the people that made them, concept art, making-of videos, etc..
And when it comes to opening titles, you can't do better than Bond.... http://www.artofthetitle.com/2011/01/24/quantum-of-solace/
-JM
