A reliable US government website by the National Library of Medicine and The National Institute of Health. Provides overviews, credible web resources, and current research on diseases and other health topics.
Sponsored by the National Library of Medicine and the National Institute of Health, PubMed is a free database that includes over 24 million citations and some full-text content for biomedical literature.
The Mayo Clinic provides credible information on a number of health topics.
American Heart Association
Information on CPR and heart health from the American Heart Association.
For tips on evaluating health information you find online, check out:
MedlinePlus Guide to Healthy Web Surfing
MedlinePlus: Online Health Information - What Can You Trust?