Get Started by visiting the CDC HIV Basics page. 
Centers for Disease Control and Prevention The latest HIV data, prevention science, program resources, and policy updates. Information on HIV basics, testing, risk reduction tools, HIV by group and a resource library. Site also includes information for clinicians and public health partners. The CDC Resource Library includes fact sheets, slide sets, info graphics, consumer info guides, pocket guides and materials that can be printed.
Subject: HIV and AIDS information
Audience: healthcare providers, people living with HIV/AIDS, general public, public health
Language: English, Spanish 
HIVInfo.nih.gov HIV related information from the NIH's Office of AIDS Research (OAR), the National Institute of Allergy and Infectious Diseases (NIAID), and the National Library of Medicine (NLM). Information is available for the public, researchers and health professionals, along with information on joining clinical trials and other federal HIV resources. Information is available in English and Spanish. The site also contains AIDSource - HIV Navigation Resources where you can find links to resources about HIV Navigation, retention in care and tools for navigators.
Subject: HIV/AIDS Information
Audience: healthcare providers, researchers, people living with HIV/AIDS, general public
Language: English, Spanish
Clinical Info .HIV.gov Offering information on HIV /AIDS Treatment, Prevention and Research.
- Clinical Guidelines: Federally approved medical practice guidelines for HIV/AIDS are developed by experts in HIV care.
- Drug Database: Find information on FDA-approved HIV/AIDS and opportunistic infections drugs and investigational HIV/AIDS drugs.
- Glossary: See the new images and updated definitions in the 9th edition of the glossary.
Subject: HIV/AIDS Information
Audience:
Language: English, Spanish
HIV/AIDS Community Information Outreach Program (ACIOP)
The HIV/AIDS Community Information Outreach Program (ACIOP) is a competitive awards program offered by the National Library of Medicine (NLM) to community-based organizations and libraries to improve HIV/AIDS health information access.
Subject: HIV/AIDS health information, grants
Audience: Community based organizations, public health workers, librarians
Language: English
MedlinePlus is the National Institutes of Health's Web site for patients and their families and friends. Produced by the National Library of Medicine, the world’s largest medical library, it brings you information about diseases, conditions, and wellness issues in language you can understand. MedlinePlus offers reliable, up-to-date health information, anytime, anywhere, for free. HIV/AIDS specific content on this website can be found at: https://medlineplus.gov/hivaidsmedicines.html
Subject: Health & Wellness, health topics, Drugs & Supplements, Videos & Tools, Medical Tests, Medical Encyclopedia
Audience: general public, librarians
Language: English, Spanish, multiple languages
ClinicalTrials.gov is a database of privately and publicly funded clinical studies conducted around the world. A clinical trial is a research study in which human volunteers are assigned to interventions (for example, a medical product, behavior, or procedure) based on a protocol (or plan) and are then evaluated for effects on biomedical or health outcomes. ClinicalTrials.gov is a resource provided by the U.S. National Library of Medicine
Subject: Clinical Trials
Audience: general public, healthcare workers, researchers
Language: English