CodePlex, the GotDotNet for TFS
CodePlex is a new website launched by Microsoft last week. I have a hard team keeping up with all the rss feeds (1000+ unread posts) so perhaps this was thrown all over the internet, I just didn't know! ;-)
Anyway, we all know GotDotNet is the open source repository for developers where they are able to host their projects and share their hard work with the world, and be able to track issues and discuss the work. CodePlex is about the same, but it runs entirely on Team Foundation Server. Currently there aren't that much projects online and its website is currently still blazing fast, compared to GotDotNet. We can only hope it stays this way.
The good news is that you can now download the TFS Team Explorer to be able to download and upload sources. If you've already got Team System installed, here's how to connect to CodePlex.