Wow, I was going to create a thread, but you beat me to the punch!
I also encourage someone on each team to create a team's account. I love the fact that you can customize the background of your profile, so you can place your team logo/colors on it. Very simple, requires no knowledge of crazy HTML or managing complex groups (MySpace and Facebook, respectively).
In fact, not to hi-jack your thread, but I think we should post all of our team's social-networking links. Try to expand to reach as many people as possible.
Bedford Bearcats Team 964
Follow Us!
http://www.twitter.com/bearcats964