Theatre Bay Area is a membership organization for theater companies and individual artists. It is the only organization in the entire country doing what it does. They offer discounted tickets to the general public, comps and discounts for members, publish a magazine, give out small grants, and once a year they run a general audition attended by most companies in the region. They do a lot of other stuff too. For an actor interested in working in the Bay Area, membership is a no-brainer.
Here is their website: Check it out!