AIDS Knowledge Base: A comprehensive online textbook about HIV.

CDC National Prevention Information Network: Contains a huge amount of information about diseases and prevention, along with news, educational materials and more.

DrKoop: A page of health news and information, with in-house experts, run by former U.S. Surgeon General C. Everett Koop.

Healthfinder: A large searchable database of online health publications, Web sites and more, maintained by the government Office of Disease Prevention and Health Promotion.

HIV InSite: Extensive, current information about HIV and AIDS, written by leading researchers.

Intelihealth: Johns Hopkins Medical Center's health site - includes a wealth of health information and articles, links to medical dictionaries, current health news, and more. Contains the full text of USPDI Vol. II Advice for the Patient.

MedLinePlus: Health information from the National Library of Medicine

National Center for Health Statistics: Contains health statistics, the full text of many NCHS and CDC publications, news releases, fact sheets, and more.

NC Health Info: Links to health information, practicioners and more in North Carolina.