Western States Bicycle Ride Calendar - rides all over the west, long and short.
Los Angeles City DOT Bicycle Services
Great Western Bicycle Rally- a family-oriented event over the Memorial Day weekend with rides of all distances.
The Triple Crown- list of double centuries
League of American Bicyclists -- National Organization
California Association of Bicycling Organizations (CABO) The California Association of Bicycling Organizations represents bicyclists in dealing with local and state government. They advise on legislation, and on local laws, with the aim of making California more bicycle-friendly. Most of the large bike clubs are members, and rely on CABO to keep an eye on government restrictions on bicycling, such as putting some streets off-limits to bikes, or requiring parade permits for bike rides.
Los Angeles County Bicycle Coalition (LACBC)- membership-based advocacy organization working to improve the bicycling environment and quality of life in Los Angeles County
Caltrans District 7 (Los Angeles and Ventura Counties) Bicycle Coordinator
Dale Benson, email@example.com or (213) 897-2934