511.org
A resource for transit throughout the Bay Area, including a Bicycling section with a Bike Mapper tool, links to bike maps in neighboring cities and counties, information on bike classes, safety, and much more.

Bay Trail
A planned recreational corridor that, when complete, will encircle San Francisco and San Pablo Bays with a continuous 400-mile network of bicycling and hiking trails.

City/County Association of Governments of San Mateo County
The County Bicycle and Pedestrian Advisory Committee (BPAC) serves as a forum for information on bicycling issues and provides input on future countywide bicycle and pedestrian projects.

Metropolitan Transportation Commission
A government agency that coordinates regional planning for bikeways and bike safety efforts, in addition to other efforts.

Peninsula Bicycle & Pedestrian Coalition
Advocates for safety and accessibility for cyclists and pedestrians in San Mateo County. Website provides information on bike routes, road conditions, reporting incidents, and various groups and events.

Peninsula Traffic Congestion Relief Alliance
Provides free bicycle and pedestrian safety workshops, in addition to incentives for commuters and employers to encourage bicycle use.