Bing kicks ass lol, I can get quick and easy citations of USC if I know vaguely what I'm looking for, find papers way easier than scholar search if again I vaguely know what I want, get pointed to the correct philosophical concepts (and even have a philosophical discussion with it), I mean really it's the best way to find stuff on the web right now.

Just tell it what you're looking for and voila

Also a great quick reference for games, although as you can expect it's better at knowing things about newer, popular games.