@somnius not in the area anymore but... some cool meetup locations:
DNA Lounge / pizza
The Interval at Long Now
James Turrell's "Three Gems" skyspace in Golden Gate Park
and, only half jokingly, The Wave Organ
Merveilles is a community project aimed at the establishment of new ways of speaking, seeing and organizing information — A culture that seeks augmentation through the arts of engineering and design. A warm welcome to any like-minded people who feel these ideals resonate with them.