Every year, a group of really terrific Linux user's groups in Southern California put on a small conference and expo concentrating on Linux, its programming and use. Google is a sponsor, and I'll be talking about Google, Open Source and the Summer of Code. Check out their Schedule, they have some very interesting speakers and topics.
Also, it is very economical! Just $65.00 at the door and half that if you are a student. See you there!