An informal meet-up of information security professionals in San Francisco and Bay Area: May 16th @ Zeitgeist in San Francisco, CA: mark the date now.
Unlike other meet-ups, you will not be expected to pay dues, "join up", or stomach another vendor spiel to attend [well, maybe later ... if you really want to... and if you feed said vendor a pint or two :-)].
In other words, if you work in security and live in Bay Area (or the City itself), you MUST be there on May 16th :-)
And, of course, you want to know who will be there: the "In crowd" or the local "Dorks Anonymous"? Well, both :-) Here are some of the people who will be attending: here, here, and here.
UPDATE: somebody asked me "should I bring my girlfriend?" And I said: "can she write exploits?" You guess the rest ...