ReadWriteWeb

If you've been waiting to see all the standard Web 2.0 site features put to a socially significant use - wait no longer, check out OpenCongress.org. This beautifully designed site makes it far easier and more fun to track activities in the US congress than it's ever been since the organization was formed.

A project of the Participatory Politics Foundation and the Sunlight Foundation, OpenCongress is a site that anyone even remotely interested in politics should see.