Dr. Koop's Community http://www.drkoop.com/
Former Surgeon General Koop's resources for health information. A wide variety of topics, an encyclopedia, pharmacopeia, and resources guide.
eCureMe.com http://www.ecureme.com/
Identify symptoms to make a self-diagnosis; set up online consultations with physicians and therapists; view online medical dictionary of diseases, treatments, drug information.
eMedicine Health http://www.emedicinehealth.com/
Information for consumers on the symptoms and treatment of nearly every type of disease and health condition, first aid procedures for accidents and injuries, and physical and the emotional well-being that contribute to general wellness.
Health A to Z http://www.healthatoz.com/
Includes a directory of more than 50,000 professionally-reviewed Internet resources, supportive online communities, and a calendar.
Dental