HEATKEYS

Internet Archive is a non-profit digital library offering free universal access to books, movies & music, as well as 150 billion archived web pages.

symptom checker allowing research of the causes of one or many symptoms in an extensive knowledge base, including common and rare causes.

Simple search for Medical and health care billing codes online. Current 2010/2011 codes, accurate information on ICD-9 (ICD-9-CM and ICD-9-PCS), ICD-10-CM/PCS, CPT(R), HCPCS, PQRI and other billing codes and code sets.

Medical communities and forums staffed by doctors from leading medical centers. Over 325 forums and communities providing medical information and medical help.

Health related message boards offering discussions of numerous health topics including allergies, cancer, diabetes, heart disease, exercise, attention deficit disorder, diet, and nutrition.