Mayo Clinic: General health and healthy living materials, news, videos, recipes, pod-casts, blogs, etc. covering diseases, symptoms, drugs & supplements, tests & procedures, first-aid.
Cleveland Clinic: A patient education and health information site which includes pod-casts, web-casts, transcripts of web chats with physicians, symptom checker, and many more interactive tools for patients and students alike to stay up to date with the latest health news.
Healthfinder.gov: Contains a compilations of carefully selected information from various health organizations. Some services include the Drug Interaction Checker, Online Checkups and newsletters.
Medline Plus: Includes an illustrated medical dictionary, the latest health news, directories (doctors, dentists, hospitals, clinics, etc.), and interactive health tutorials. The GoLocal option allows users to search for resources by state.
Drug Information Portal: Provides selected drug information and is tailored to health professionals.
BioMed Central: Free, peer-reviewed research articles and journals. This site includes tabbed links to Chemistry Central, an accompanying open access site that you may find helpful.