Friends of Pinnacles
- Access and closure information. Environmental impact analysis and tips. New route and rebolting information. News. Schedule of upcoming events. Membership information. (group advocates for access at Pinnacles National Monument, California)
- http://www.pinnacles.org/

Southern California Mountaineers Association
- Membership information. Courses offered.
- http://www.rockclimbing.org/

SoCal Climbing
- Southern California email discussion group. Requires registration.
- http://groups.yahoo.com/group/socalclimbing/

Sierra Club Desert Peaks Section
- The Desert Peaks Section of the Angeles Chapter sponsors climbs of arid summits across the southwest. Includes history of the club, archive of past trips, newsletter suscription form, and organizational information. (Los Angeles)
- http://www.angeles.sierraclub.org/dps/

Rock Rendezvous
- Schedule of upcoming events. Newsletter. Trip reports and photos. (San Francisco)
- http://www.rockclimb.org/rr/

Loma Prieta Peak Climbing Section
- Schedule of upcoming events. About the club. Membership information. Newsletter. (Santa Clara)
- http://lomaprieta.sierraclub.org/pcs/

California Mountaineering Club
- Membership information. Schedule of upcoming events. Photos. Newsletter.
- http://www.californiamountaineer.com/