AIDSinfo is a U.S. Department of Health and Human Services (DHHS) project providing information on HIV/AIDS clinical trials and treatment. It is the result of merging two previous DHHS projects: The AIDS Clinical Trials Information Service (ACTIS) and the HIV/AIDS Treatment Information Service (ATIS). It is a central resource for current information on federally and privately funded clinical trials for AIDS patients and others infected with HIV. "Aimed at HIV/AIDS patients, the general public, health care providers, and researchers, this easily navigated site provides a central source for information on clinical trials for patients with HIV and AIDS, federally approved HIV treatment and prevention guidelines, and medical practice guidelines. By clicking on the "Drugs" link, users can locate information on anti-HIV medications, including side effects, dosages, and interactions with other drugs or food. The site also provides access to brochures, fact sheets, and other web resources on HIV/AIDS, downloadable copies of current and archived versions of U.S. Department of Health and Human Services guidelines, and a searchable glossary, available in both English and Spanish, of HIV/AIDS-related terms. A useful resource for anyone seeking in-depth information on this topic."--"Best Free Reference Web Sites 2003, " RUSA Quarterly, Fall 2003; reviewed March 6, 2003.