I commit to responding at length to this thread tomorrow when I have more time, but here is a little bit of my background and what I'm into now in case anyone wants to ask specific questions.
I ran my university's skeptic/atheist group for two years and ended up getting involved at the national level with the Center for Inquiry this past summer as an outreach intern at their headquarters. I moved out to the Bay Area specifically to get involved with pro-reason causes.
Here is a group that just started that I'm involved with: Reason for Reason.
Looking forward to your input.
So as I read around the discussion section I keep coming across ideas (like this, this, this, or this) which all seem to be very related to the same topics:
Other posts talk about similar things.
I have been interested in this for a while now, and have gotten some great feedback.
But now I'm wondering how many groups, other than SIAI, are trying to do this. It seems like it would be silly to have something like this stagnate because of a simple coordination problem.
So if you are, please come forth and comment. If you're interested, do the same. Share what you know, learn from others, maybe maybe maybe get the ball rolling a bit more.
Note:
I changed the title (originally "Rationality Activism Groups") to reflect the more discussion-oriented nature of this thread.