CORBA Concerned Off-Road Bicyclists Association, a chapter of IMBA - CORBA's programs include trail building and maintenance, Youth Adventures at-risk youth mountain bike outings, monthly Kids Club family mountain bike fun rides, free monthly mountain biking skills classes, and a monthly e-newsletter. The website is also a comprehensive archive of mountain bike advocacy in the Los Angeles and eastern Ventura Counties.
DirtChix DIRTCHIX is a southern California based women's mountain bike club with rides primarily focused in the Santa Monica mountains. DIRTCHIX offers a supportive environment for female riders of all ages and abilities.
IMBA International Mountain Bicycling Association, the national advocacy group for mountain biking and trail access.
mtbr.com A rider-driven site with tons of real-life reviews, trail descriptions, great deals on gear, and more.
National Park Service The official site of the Santa Monica Mountains National Recreation Area.
North Ranch Mountain Bikers Thousand Oaks area club for mountain biking. Social rides near and far for all levels
socalmtb.com Comprehensive listing of rides and shops in Southern California, message boards and more.
venturacountytrails.org Comprehensive list of trails in the Santa Monica Mountains National Recreation Area and Conejo Open Space Conservation Agency.