Social Networking Site Focused on Groups, Not Individuals

Looking for: Designer, Developer, Marketer
I've been playing with an idea after setting up a Twitter account for a coworker. The problem for new twitter accounts is that they are empty with no followers. In fact, it takes a lot of time and effort to actually build a good base of followers.

This idea would take individuals out of the equation. A user can sign up, join a few groups and automatically have access to network with those already in the same groups.

Additional Info

  • Time commitment: part time (10h/week)
  • Idea stage: just an idea