OCB
- The Organization of Competitive Bodybuilders. North American drug-free bodybuilding, fitness and figure competitions and information.
- http://www.theocbwebsite.com

International Federation of BodyBuilders (IFBB)
- Home of the Mr. Olympia and Ms. International competitions. Includes rules for pros and amateurs, contest results, links, reports and news.
- http://www.ifbb.com/

World Body Building Association
- Home of the Mr. and Mrs. America Contest. Site offers contest results, photos and schuedules.
- http://www.worldbfa.com/

Manitoba Amateur Body Building Association
- Calendar of events and results of Manitoba's amateur bodybuilding scene.
- http://www.bodybuilding.ca/

The South Carolina National Physique Committee
- The official information site for all South Carolina bodybuilding, fitness and figure competitors.
- http://www.scbodybuilding.com/

National Gym Association, Inc.
- Personal fitness certification course and natural bodybuilding and fitness shows for men and women including professional and amateur athletes.
- http://www.nationalgym.com/

NABBA International
- Official site of the National Amateur Body Builders Association (NABBA) International. News and information on Mr. Universe, Ms. Universe and other contests.
- http://www.nabba-international.org/

British Natural Bodybuilding Federation
- Dedicated to British drug free bodybuilding, both amateur and professional. Covers training, diet and competitions.
- http://www.bnbf.co.uk/

Australasian Natural Bodybuilding
- The official website of the A.N.B. giving information on results, competitions, rules, banned drugs and contact information.
- http://www.anb.com.au/

The Exercise Group
- Official site of World Natural Bodybulding Federation (WNBF)and International Natural Bodybuilding Federation (INBF), with a variety of drug-free exercise information.
- http://www.exercisegroup.com/

National Physique Committee (NPC)
- Governing body of amateur bodybuilding and fitness for the IFBB. Contains contest schedules, rules and guidelines, news and shopping.
- http://www.getbig.com/info/npc.htm

North American Natural Bodybuilding Federation
- Natural bodybuilding links and contest schedule. Includes pictures, exercise tips and results.
- http://www.nanbf.org/

United States Bodybuilding Federation
- Offers natural athletes the opportunity to compete in local, regional and national bodybuilding competitions. Contains events, gallery and rulebook.
- http://www.usbf.net/

World Natural Sports
- Sponsors drug-tested and televised bodybuilding comptetions across the country. Includes policies, membership information, news and event schedule.
- http://www.worldnaturalsports.com/

Amateur Bodybuilding Association
- Sponsors natural bodybuilding competition. Information including list of banned substances, rules and regulations, and judging criteria.
- http://www.naturalbodybuilding.com/

NABBA USA
- Information about the association, including codes of ethics, rules and regulations, and contest schedules.
- http://www.nabba.com/