CDC

Centers for Disease Control and Prevention main page. Includes MMWR, Mortality and Morbidity Weekly Review, which provides health statistics, infectious disease information, and breaking news.

clinicaltrials.gov

National Institute of Health site providing information on over 29,000 federal and privately sponsored clinical trials. Includes consumer information on the nature of clinical trials and answers to common questions about participation in clinical trials.

Healthfinder

Extensive listing of healthcare organizations compiled by Department of Health & Human Services. Includes federal and state agencies, professional organizations, nonprofit agencies, and DHHS and other federal clearinghouses.

MerckMedicus

A portal for healthcare information for professionals, including access to textbooks (Cecil Textbook of Medicine, Harrison's Principles of Internal Medicine, and numerous others), Mosby's Drug Consult, numerous full-text journals, a slide image bank, CME, and many other features.

NGC

National Guideline Clearinghouse. A public resource for evidence-based guidelines collected (but not created) by the Agency for Healthcare Research and Quality (AHRQ).

NIH

National Institute of Health main page. Includes links to all the various National Institutes, including the National Cancer Institute, National Heart, Lung, and Blood Institute, National Institute on Drug Abuse, National Institute of Mental Health, and National Institute of Neurological Disorders and Stroke.

Silverbook

A database of material on chronic disease created by The Alliance for Aging Research. Content consists of links to material from over 100 separate agencies, organizations, and experts.