ABC Directory : Health :

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/

Judge: Web Sites for Health

Provides evidence-based guidelines to assist consumers and site creators in assessing the quality of health information on the internet. Free copies can be downloaded for printing.
http://www.judgehealth.org.uk/