Health On the Net Foundation
Guides lay persons and non-medical users and medical practitioners to useful and reliable online medical and health information. Provides leadership in setting ethical standards for Web site developers.
http://www.hon.ch/

WebMD
Comprehensive health resources for consumers, physicians, nurses, and educators. Includes news, chat forums, health quizzes and consumer product updates.
http://www.webmd.com/

AOL Health
Find health advice, information about diseases, diet tips, calorie and body mass calculators, chats and message boards.
http://health.aol.com/

BBC Health
Features current news plus archives, guides by subject, "Ask a Doctor" inquiry feature, a searchable conditions database, message board, and e-mail newsletter subscription.
http://www.bbc.co.uk/health/

InteliHealth
Harvard Medical School's consumer health information, journal databases, a medical dictionary, FAQs on latest news and live forums.
http://www.intelihealth.com/

Early Signs Of Alzheimer's
Offering a wide variety of articles relating to alzheimer's disease including diagnosing, treatments, home care, nursing home facilities, support groups, reasearch and finding a cure, early alzheimer's, and other related information.
http://www.alzheimers-disease-care.com/

Health, Fitness, Wellness Guide
Health, Fitness Products & Medicine Resources for UK
http://www.ukhealthguide.info