A few weeks ago, I wrote a blog entry over on Huffington Post about the need for new congressional rules that would let members of Congress use the same social tools that their constituents are using: Facebook, Youtube, blogs, etc. It was all part of the Sunlight Foundation‘s campaign, Let our Congress Tweet. While we used Twitter (the online social networking/microblogging site that limits your posts to 140 characters) as an example, we’re concerned that members of Congress should be able to use all the services technology offers.

Over at Congresspedia, we’re starting to track the members of Congress who are using Twitter. We’ve compiled a list of 29 members thus far, and we’re always on the look out for others. One neat trick we’re offering: for those members who are using Twitter, you can read their latest posts right on the Congressedia profile.

Rep. Tom Udall was one of the first to adopt the service, and his campaign has been quick to embrace blogging and other aspects of the Web as well. You can see his Congresspedia profile here, complete with his most recent “tweets” from Twitter.

If you know of any other members of Congress using Twitter (or congressional candidates for that matter) please let us know!