BSD- and Unix-Related Stuff in the Bay Area

In no particular order. You might also want to see John Brewer's listing of Bay Area technical meetings.

WiFi Meetup Day

7:00 PM on the second Wednesday of each month.

Bay Area Wireless Users Group

Silicon Valley BSD Users Group

Well-organized group of *BSD (Free, Net, Open, BSDi, OS X) people.

Bay Area BSD Events

Berkeley Unix Users Group

Bay Area Linux Events

Bay Area NetBSD Users Group

Bay Area LISA Group

Bay Area NeXT Group

NEXTSTEP was based on 4.3BSD and Mach, and is now known as "Mac OS X". :)

Bay Area Python Interest Group

High-quality speakers at a very agreeable meeting place.

San Francisco Perl Mongers

You do know Perl, don't you?

Bay Area FreeBSD Users Group