United States Deaf Cycling Association (USDCA)
- Provides support, education, and awareness for deaf cyclists. Features such items as an events calendar, membership information, photo gallery, and affiliated cycling club listing.
- http://www.usdeafcycling.org/

Great Lakes Randonneurs
- Promotes and manages a yearly brevet series for randonneurs in the Midwest area. Includes events calendar and results, rules, photo gallery and contacts.
- http://www.glrrando.org/

Bicycle Helmet Safety Institute
- Information on bicycle helmets, standards, and cycling laws; the helmet advocacy program of the Washington (DC) Area Bicyclist Association.
- http://www.bhsi.org/

Tyler Hamilton Foundation
- Works to provide opportunity and access for individuals affected by multiple sclerosis and for aspiring young athletes with a passion for cycling. Calendar of events, photos, list of supporters, donation information.
- http://www.tylerhamiltonfoundation.org/

RUSA - Randonneurs USA
- Promotes randonneuring (long distance cycling) within the United States. Includes membership information, events, FAQs, affiliations, merchandise, awards, publications, rules, administration, and contacts.
- http://www.rusa.org/

Wheelmen, The
- National, non-profit organization dedicated to keeping alive the heritage of American cycling, promoting the restoration and riding of early cycles (1918 or earlier). Features history, membership information, publications, swap meets, and meetings.
- http://www.thewheelmen.org/

American Track Racing Association
- Sponsor of the American Velodrome Challenge, a national series of elite level track racing held at velodromes around the nation. Racing calendar, locations, sponsors and contacts are provided.
- http://www.americantrackracing.com/

National Bicycle Safety Network
- A coalition of public and private organizations and agencies working together to increase safe bicycle use. This includes reducing the incidence of traumatic brain injuries from bicycle use, promoting safe cycling as a viable transportation alternative, a
- http://www.cdc.gov/ncipc/bike/default.htm

ABA BMX
- The world's largest BMX sanctioned organization. Information on the locations of the races, series standings, and information on some of the riders.
- http://www.ababmx.com/

League of American Bicyclists
- The League of American Bicyclists has been working to improve the quality of bicycling in America almost as long as there have been bicycles.
- http://www.bikeleague.org/

Major Taylor Association
- Residents of Worcester, Massachusetts, who became intrigued with the story of the 1899 world champion bicycle racer from Worchester who overcame racial prejudice to become the first internationally acclaimed African-American sports star. Features events,
- http://www.majortaylorassociation.org/

PBAA - Perimeter Bicycling Association of America
- Organizes perimeter events and to encourage cyclists to bicycle perimeters of towns, cities, states, countries, and any geographical boundary. Features events calendar, monthly magazine, and membership information.
- http://www.pbaa.com/

CORBA
- Concerned Off-Road Bicyclists Association - provides several mailing lists, signups for biking skills classes, trail building and maintenance, and online newsletter to its members.
- http://corbamtb.com/

American Cycling Association (ACA)
- Promotes the sport of bicycle racing, develops local, regional and international competitions, and coordinates club activities to insure a season of scheduled bicycle races in the United States (formerly Bicycle Racing Association of Colorado).
- http://www.americancycling.org/

Association of Pedestrian and Bicycle Professionals
- APBP provides quick access to bicycle and pedestrian program pages of federal, state and local transportation agencies.
- http://www.apbp.org/

USA Cycling
- The United States' cycling organization, including USPRO (track), USCF (road), NORBA (mountain biking), and NCCA (collegiate cycling) programs.
- http://www.usacycling.org/

Bikes Belong Coalition
- A membership organization founded by bicycle industry leaders with the mission of "putting more people on bikes more often through the implementation of TEA-21".
- http://www.bikesbelong.org/

Rails to Trails Conservancy (RTC)
- Organization that converts abandoned railroad tracks into biking, hiking and walking trails. Site includes bookstore and gift shop, history and information, advocacy campaigns, and members area.
- http://www.railtrails.org/

Ultra-Marathon Cycling Association (UMCA)
- Information for cycling enthusiasts who enjoy rides of 100 miles and longer (from the people who bring you the Race Across AMerica - RAAM).
- http://www.ultracycling.com/

NBL - National Bike League
- Promotes BMX cycling through championship series, competitions, news, results, TV schedule and BMX Today magazine.
- http://www.nbl.org/

NEMBA: New England Mountain Bike Association
- Promotes trail advocacy and access for mountain bikers. Includes local chapter listings, event schedules, a newsletter and biking articles.
- http://www.nemba.org/