MoveOn.Org a large "California" based progressive organization has yet to take a stand on the marriage amendment slated for the upcoming election. I personally have unsubscribed from MoveOn's email list months ago because I never see them take any actions on LGBT issues and I find that disturbing.
MoveOn.org is now taking feedback on where their focus should be going fwd, please let them know LGBT issues are important to you, as well as defeating the anti-gay marriage amendment in California.
http://queersunited.blogspot.com/2008/06/urge-moveonorg-to-take-stand-on.html