There are lots of open-source code repositories - SourceForge, Google Code, Project Kenai, etc.
Is there a one-stop place where I can find, discover, or search for open-source projects across all of these repositories? Or do I have to visit all of them to find something I'm interested in?
Edit: I should specify that I'm interested in searching project descriptions, not just lines of code. I'd like to answer, "Is there an existing tool for doing X?" - and is it actively maintained, and other higher-level questions like that.