Alliance for Biking and Walking
Provides developmental support for advocacy coalitions, organizes an annual retreat for state and local advocacy leaders, and represents local and state advocacy organizations in national affairs.
The campaign for bicycle-friendly federal transportation legislation.
International Mountain Bicycling Association
Nonprofit educational association whose mission is to create, enhance and preserve great trail experiences for mountain bikers worldwide.
League of American Bicyclists
National membership organization for bicyclists. The League recognizes states, communities and businesses for their efforts to promote bicycling, and also develops the only nationally recognized bicycling curriculum in the United States, certifying instructors to provide training to students and new instructors.
National Complete Streets Coalition
National clearinghouse and support for the Complete Streets movement.
National Center for Bicycling and Walking
An excellent clearinghouse of info pertaining to federal funding of bicycle projects and how communities are making themselves more bike-friendly.
Safe Routes to School National Partnership
Works to support the development and implementation of programs to promote walking and biking to school.
Introduction to Cycling, by DietSpotlight
This site covers all aspects of cycling for the beginner. From choosing the right bike and what to wear to how to start riding and staying motivated.