National Institute for Fitness and Sport - Non-profit organization committed to enhancing human health, physical fitness and athletic performance through research, education and service.

Personal Trainers Marketing Association - Business services, marketing resources, and sales leads along with useful business tutorials

International Fitness Association - Online certifications for Kickboxing Aerobics Instructor and Fitness Trainer. Free Fitness Manual. International Recognition.

National Strength and Conditioning Association - Non-profit association dedicated to facilitating the exchange of ideas in strength development as it relates to the improvement of athletic performance and fitness.

National Sports and Fitness Association - Division of the American Fitness Association, Inc., for individuals interested in health and fitness.

Asian Outdoors Boston (AOB) - A non-profit organization bringing together Asians in the New England area that share a common interest for the outdoors, to have fun and maintain fitness.

American Council of Exercise - ACE is a major source of education and certification for fitness professionals and for the evaluation of fitness products.

IHRSA - International Health, Racquet and Sportsclub Association: Organization that promotes fitness through education and sport club membership.

International Personal Fitness Trainers Assoc. - Certification organization to better train fitness trainers and health care professionals.

International Sports Science Association - Offering fitness information and certification for personal trainers. Trainer locator, seminars, and exercise of the day.

The Keep Fit Association - Provides fitness classes and trains teachers to deliver fitness classes for people of all ages.

New York State Physical Activity Coalition - Advocating physical activity and fitness, and promoting information that will help individuals lead longer, healthier lives.

The Fitness League - National network of locally based exercise classes, suitable for all ages and abilities, available in over 300 venues across the UK.

National Center on Physical Activity and Disability - NCPAD encourages persons with disabilities to participate in regular physical activity to promote healthy lifestyles and prevent secondary conditions.

Idaho Association of Exercise Physiologists - Dedicated to advancing the profession of the exercise physiologist in Idaho.

College of Chinese Physical Culture - Teaches a traditional system of Chinese arts for health, relaxation and fitness.

Fitness Scotland - Aims to establish better fitness awareness in Scotland.

Association of Womens Fitness - Resource site on womens fitness and health, with a special focus on preventing home gym training injuries.

National Endurance Sports Trainers Association (NESTA) - Offers multiple fitness trainer certifications, educational products, seminars, workshops, and distance learning.

National Association for Health and Fitness - A not-for-profit organization that exists to improve the quality of life of every individual in the United States through the promotion of physical fitness and healthy lifestyles and by fostering and supporting Councils for physical activity, health and sports.

World Fitness Organization - Extensive fitness plans, advice and resources for getting fit.

International Sports Sciences Association - The ISSA provides Fitness, Personal Training Certifications, and Online Continuing Education.

American College of Sports Medicine - Promotes fitness, health and quality of life through research, education and practical applications of sports medicine.

IDEA - Supports the world's leading health and fitness professionals with credible information, education, career development and leadership.

Indiana Association of Exercise Physiologists - The I.A.E.P. is an affiliate society of the American Society of Exercise Physiologists. About the association, committees, membership, health related links and a section for sending comments.