Centers for Disease Control and Prevention
Centers for Disease Control: Infectious Diseases Cards: Hiv [Pdf]
This PDF fact card on HIV explains how you can get the virus, the effect it has on your body, and how to protect yourself from infection. Requires Adobe Reader.
Other
Catie (Canadian Aids Treatment Information Exchange)
CATIE is a Canadian organization that provides support and information to people affected by HIV and AIDS, and those seeking information on AIDS prevention. The site offers many resources, for example, information for HIV-infected...
Scientific American
Scientific American: Aids Today and Tomorrow: In Depth Reports
A collection of Scientific American articles from 2008 on the topic of AIDS.
National Institute on Drug Abuse
Nida: About Hiv/aids
Learn about how to protect yourself from HIV/AIDS with some scientific facts.