Advocacy Groups Bikes Belong
www.bikesbelong.org

Bikes for Tykes
www.bikesfortykes.org

International Mountain Biking Association
www.imba.com

Rails-to-Trails Conservancy
www.railtrails.org

Trips for Kids
www.tripsforkids.org

League of American Bicyclists
www.bikeleague.org

National Bicycle League
www.nbl.org

World Bicycle Relief
www.worldbicyclerelief.org

Web Mountain Bike
www.webmountainbike.com  

Tour de Thailand - International Charity Bicycle Ride
www.tourdethailand.com