Los Angeles Science Fantasy Society (LASFS)
- General information on the North Hollywood group that runs Loscon, an annual convention, which takes place in southern California. Weekly social and business meetings.
- http://www.lasfs.org

Stone Hill SF Association
- The oldest SF club in the Tampa Bay area. Meetings once a month.
- http://www.stonehill.org/

LosCon
- Held annually on Thangsgiving weekend in the Los Angeles area. Includes information on memberships, guests of honor, and hotel for the next convention, links for past conventions, and a history of LosCon.
- http://www.loscon.org/

BayCon
- General science fiction and fantasy convention, held in San Jose over Memorial Day Weekend.
- http://www.baycon.org

The San Francisco Bay Area Science Fiction Association (BASFA)
- Social group with weekly meetings. Includes location, schedule, and information on the pun tax rule.
- http://www.basfa.org/

SiliCon 2004
- Silicon Valley's annual convention. Located in Sunnyvale, September 3-6, 2004.
- http://www.siliconventions.com

Silicon Valley in 2007 - Westercon 60
- A bid for a convention to be held July 5-8, 2007. Run by SPFII (Society for the Promotion of Fannish Interests, Inc.).
- http://spfii.org/westercon60/

BASCon
- Annual slash con, held in the San Francisco area. Most recent is November 7-9, 2003.
- http://www.bascon.org

Conucopia: 1999 North American Science Fiction Convention
- Held August 26-29 in Anaheim. Includes program and image gallery.
- http://www.99.nasfic.org/

ConDor XI
- A media and literature convention that focuses on general science fiction and fantasy.
- http://www.condorcon.org

San Diego Science Fiction Conventions, Inc.
- Runs science fiction conventions in the San Diego area.
- http://www.sdsfc.org

Orange County Science Fiction Club
- Monthly meetings in Fullerton.
- http://ocsfc.org

ConJecture
- Annual science fiction and fantasy convention with an emphasis on literary programming and events. Held in San Diego.
- http://www.conjecture.org

Darkstar Science Fiction and Gaming Club at UC San Diego
- Information on meeting and gaming times, library hours, and activity schedule.
- http://darkstar.ucsd.edu/

USS Defiance, NCC 1717-E
- Star Trek fan club in Sacramento California. Site contains general information about meetings, and events, and has a list serv.
- http://www.ussdefiance.org/