President´s Council on Physical Fitness and Sports
Promotes, encourages and motivates Americans of all ages to become physically active and participate in sports. Includes details of the President's Challenge award programs for students, and the Presidential Sports Award Program for ages 6 years old and up. http://www.fitness.gov/
National Library of Medicine
The world's largest medical library. It collects materials in all major areas of the health sciences and to a lesser degree in such areas as chemistry, physics, botany and zoology. http://www.nlm.nih.gov/
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. http://www.physicalfitness.org/