O'Reilly books code search (beta) - I tried it and I like what I get - http://labs.oreilly.com/code/
With this - I get code sample results from books not some 10 pages of results in a search engine, Blog hogs and useless dead end un-answered forum threads.
Most of the times I'd search for something.somethingelse. and really forget what I wanted to do or what was the proper syntax and where I'd implement this - ok this happens rarely “very late at night with something that I just want to work right now and I am not going to bed until it does!”, but the benefit of looking something up outside of the MSN Search is a relief.