ProCon.org
Pro Con: Marijuana: Should Marijuana Be a Medical Option?
Website outlining the argument for and against legalizing marijuana for medical purposes. Presents research, studies and pro-con arguments on the topics.
US Food and Drug Administration
Food and Drug Administration: Controlled Substances Act
Full text of the Controlled Substances Act.
Other
Drug Free America Foundation
This resource covers all illegal drugs and provides information on health risks, drugs in the workplace, case stories, moral and spiritual issues, state drug initiatives, and a kids section.