Source code search

This one's for the programmers. Apologies to the non-programmers.

You know that feeling you get when you've been mulling over a really cool idea for a product or a service, something that you, and lots of people like you, would surely use all the time -- and, after getting psyched about this brilliant idea of yours, you discover somebody has already done it?

Part of you (the part with the desire to use the thing) says "Cool!"

Another part (the part with the desire to make the thing) says, "Aaargh!"

I just had one of those coooolaarrrrrrgh moments upon discovering Koders.com, a source code search engine. Search millions of lines of code in thousands of open source projects. Narrow your search by language and even by license.

Pretty damn cool. The bastards.

(I already suggested to them that they add Objective C to the language list, but don't let that stop you from doing the same if you're so inclined.)