The National Institute on Drug Abuse [NIDA] has been one of the world's largest research organization for more than 28 years on the health aspects of drug abuse and addiction. As part of the U.S. Department of Health and Human Services' National Institutes of Health, they support and conduct research and then distribute the findings to policy makers and educational, prevention, and treatment programs.

For more information, check out their Web site: www.drugabuse.gov