AIDS.gov
Managed by the U.S. Department of Health & Human Services, AIDS.gov provides information on federal policy and programs. The site also features U.S. and global statistics on the disease.

CDC: HIV/AIDS
This website of the Centers for Disease Control and Prevention is a gateway to a wealth of information on the disease including statistics, legal information, program evaluation and media.

thebody.com
Links to reports and discussions on HIV/AIDS.

HIV InSite
Comprehensive, up-to-date information on HIV/AIDS treatment, prevention, and policy from the University of California San Francisco.

Joint United Nations Programme on HIV/AIDS
UNAIDS brings together the efforts and resources of ten UN system organizations in the AIDS response to help the world prevent new HIV infections, care for people living with HIV, and mitigate the impact of the epidemic.

UNICEF: AIDS
This website features publications like the annual Children and AIDS Stocktaking Report.

World AIDS Campaign
The World AIDS Campaign is a global coalition of national, regional and international civil society groups based primarily in Cape Town, South Africa and partially in Amsterdam, The Netherlands. Also available in Spanish, French, Portuguese and Russian.

World Bank: HIV and AIDS
Both statistics and working papers are available through this World Bank portal.