National Institute on Drug Abuse http://www.nida.nih.gov/

 National Clearinghouse for Alcohol and Drug Information http://www.health.org/

 National Council on Alcoholism and Other Drug Dependence http://www.ncadd.org/

 Partnership for a Drug Free America http://www.drugfreeamerica.org/

 Substance Abuse and Mental Health Services Administration http://www.samhsa.gov/

 A Brief Tour of the Brain http://suhep.phy.syr.edu/courses/modules/MM/Biology/biology.html/

 Society for Neuroscience http://www.sfn.org/

 Drug Enforcement Agency Drug Data http://www.usdoj.gov/dea/drugdata/stats.htm

 D.A.R.E. http://www.dare-america.com/

 Get It Straight -- Facts About Drugs http://www.usdoj.gov/dea/pubs/straight/cover.htm

 Neurology of Addiction http://www.the-scientist.library.upenn.edu/yr1995/august/drugs_950821.html

 History and Effects of Cannabis http://www.umds.ac.uk/neupharm/can.htm

 Hallucinogenic Drugs http://lnbd.uicomp.uic.edu/~phil/hallucin.htm

 Addiction's Path http://www.sfn.org/briefings/addiction.html

 Buzzed: The Straight Facts About the Most Used and Abused Drugs by Kuhn, Swartzwelder, and Wilson. (Norton & Company, 1998)