Medline Plus brings together information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), other U.S. government agencies, and health-related organizations.
The President's Council on Fitness, Sports and Nutrition (PCFSN), is a government organization that aims to "promote, encourage and motivate Americans of all ages to become physically active and participate in sport." It is part of the Office of Public Health and Science, an agency of the United States Department of Health and Human Services.
Professional societies and organizations often provide valuable information on their websites: publications, news, workshops, and competition announcements.
