When I want to look up an API in the .Net Frameworks, or read about some language construct, I look to MSDN as the repository of such information.  But MSDN search is painful, and Google rocks.  So I have this link as a shortcut in my browser:

http://www.google.com/search?q=site%3Amsdn.microsoft.com

Yeah, we should feel embarassed about this.  But you should take advantage of it, because it makes you more productive.