So often the security conversation is about technology praxis & opsec, but I think it's also important to be able to reach out to a community in person. This threat is for listing places, talking about them, and if you're in the area and it's cool with the members, even dropping in to say hello.
Please add to the list!
San Francisco
Noisebridge
Techno-Activism Third Mondays at EFFBerkeley
The Long Haul (this one is less tech-oriented, but I don't think it's wholly out of place on this list)