Twitter Groups: "TwittGroups.com
Who said that Twitter needs to have Groups?
Now you can create your own Group tag and invite your friends on Twitter to join you. Expand your Twitter experience by sharing links and allowing other to follow you and join your group.
Create a new Group or Join an existing group. Follow people with the same interests as you. Find new people to follow. Let people follow you. Share your favorite website links.
Create and promote your own groups... It is that simple...
Create A Twitter Group
Join A Twitter Group"