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/
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
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/