AIDS Education Global Information System (AEGIS) is "the largest HIV/AIDS database in the world."

The Body is the most-frequently visited HIV/AIDS-related site on the Web, according to the Medical Library Assocation. The site includes a treatment forum in Spanish: Foro Sobre Tratamientos, and a forum on women and children.

HIV | InSite has extensive information on HIV treatment and policy, including features like a personalized clinical trial search and a course on anti-HIV therapy.

AIDS.ORG has treatment conference listings, links to treatment periodicals, fact sheets, HIV testing locations, and much more.

ClinicalCareOptions for HIV includes treatment news, conference coverage, and other up-to-date clinical information on HIV/AIDS.

Journal Watch: AIDS Clinical Care. Where physicians summarize articles from leading medical journals & comment on the latest clinical research.

HIVinfoSource from the New York University (NYU) School of Medicine.

National Minority AIDS Council contains searchable online treatment publications, among many other valuable resources.

Glossary of AIDS-related Terms

Diccionarios: definitions of AIDS terms in Spanish (en español).

AIDS start page contains over 500 HIV/AIDS links, including resources by US States and several countries.

Disease-resources.com has links to resources on many diseases and conditions, including HIV/AIDS.

HIVdent contains information on the oral manifestations and various oral health care issues related to HIV infection and dentistry.

AIDSmeds.com has information on many HIV medications, including recent treatment news.

AIDS Treatment Data Network offers fact sheets, listings of expanded access and drug assistance programs, and information in Spanish.

New Mexico AIDS InfoNet has numerous online fact sheets on a variety of topics including treatments, side effects, opportunistic infections, etc. There's also an index of HIV/AIDS related Internet bookmarks and information in Spanish (en Español).

Canadian AIDS Treatment Information Exchange (CATIE) has fact sheets and publications on a wide range of topics including alternative medicine, dietary supplements, and drug side effects. There’s also an HIV/AIDS thesaurus and other resources.

American Academy of HIV Medicine has a Resources area with patient handouts, a "Find a Provider" area to locate a local HIV specialist, and more.

HIV Resistance Response Database Initiative aims to improve the clinical management of HIV infection by developing a free, large clinical database as well as bioinformatic techniques to precisely and reliably define the relationships between HIV resistance and virologic response to treatment.