impact:, formerly known as, is an internet portal for all United States federal domestic HIV and AIDS resources and information. On World AIDS Day, December 1, 2006, the U.S. Department of Health and Human Services launched The site contains content and links that guide users to their desired information. is intended as a resource for the general public, federal staff/agencies, state staff, federal grantees, medical and research institutions, and other HIV and AIDS-related organizations. It is sponsored by the Department of Health and Human Services’ (HHS) Office of Public Health and Science and Office of the Assistant Secretary for Public Affairs and works across the government. More information...

According to PR-model, is ranked 52,349th in multilingual Wikipedia, in particular this website is ranked 43,985th in English Wikipedia.

The website is placed before and after in the BestRef global ranking of the most important sources of Wikipedia.

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