Promotes bicycling for fun, fitness and transportation and works through advocacy and education for a bicycle-friendly America.

The Bicycle Transportation Alliance is a non-profit bicycle advocacy organization based in Portland, OR. The BTA creates healthy, sustainable communities by making bicycling safer, more convenient and more accessible.

Bikes Belong Coalition is a membership organization founded by bicycle industry leaders with the mission of "putting more people on bikes more often.

The Institute for Transportation and Development Policy (ITDP) was set up in 1985, to promote environmentally sustainable and equitable transportation policies and projects worldwide.

The International Bicycle Fund is an independent, non-profit organization whose primary purpose is to promote bicycle transportation through planning and engineering, safety education, economic development assistance and international understanding.

The National Center for Bicycling & Walking is the major program of the Bicycle Federation of America, Inc. whose mission is to create bicycle-friendly and walkable communities.

Advocacy for utility and recreational vehicular cyclists

Transportation Alternatives is a 5000-member NYC-area non-profit citizens group working for better bicycling, walking and public transit, and fewer cars. We work for safer, calmer neighborhood streets and car-free parks.

A multicity film festival celebrating all things bicycle

The mission of the MMBA is to promote responsible mountain biking and to work toward the goals of common land access and natural resource protection through interaction with policy makers, the cycling industry, race promoters, mountain bikers and others.

The Friends of Massabesic Bicycling Association (FOMBA) is a non-profit organization, dedicated to preserving bicycling privileges within the Lake Massabesic (New Hampshire) watershed.

Since 1988, IMBA has been bringing out the best in mountain biking by encouraging low-impact riding, volunteer trailwork participation, cooperation among different trail user groups, and innovative trail management solutions.

The purpose of Rails-to-Trails Conservancy is to enrich America's communities and countryside by creating a nationwide network of public trails from former rail lines and connecting corridors.

The Thunderhead Alliance is the national coalition of state and local bicycle advocacy organizations working in unison to break down the barriers to safe bicycling in American communities.

An online magazine focusing on professional road cycling

Product information, enthusiast user reviews, shopping, Community discussion boards, photo galleries, news, user-to-user classified marketplace across all sites

Product information, enthusiast user reviews, shopping, Community discussion boards, photo galleries, news, user-to-user classified marketplace across all sites

An online magazine for cycling and racing.