About.com - Exercise Information

ADA Technical Assistance Program

American Congress of Governmental Industrial Hygienists

American Industrial Hygiene Association

American National Standards Institute 

American Society of Safety Engineers

Athletic Trainers Get Results

Bureau of Labor Statistics CTD data

CTD News

Ergo Web

Fitness Management Magazine

Healthy People 2010

Human Factors & Ergonomics Society (HFES)

IDEA - The Fitness Source

National Association for Health & Fitness

National Center on Physical Activity and Disability

National Council on Compensation Insurance

National Health Information Center

National Institute of Arthritis and Musculoskeletal and Skin Disease

National Institute of Occupational Safety & Health (NIOSH)

National Safety Council (NSC)

Occupational Safety and Health Administration

Physical Activity Matters: The President's Council on Physical Fitness & Sports

Surfing Guide for Healthcare Students, Physicians and Patients

Wellness Councils of America