FileMaker Developers in Southern California (FMDiSC) meets monthly in the Los Angeles area. There is no charge to attend meeting. Monthly meetings are a local center for the exchange of technical information, discussion of timely topics, and for networking (people not computers).
They generally meet on the second Friday morning of each month. Meetings are currently being held at the Bresee Youth Foundation, which is located at 184 S. Bimini Place in Los Angeles. You can find a map to their address here.
For more details on the meeting time and location: http://www.fmdisc.org