Following are the top 10 visited medical sites according to Alexa ranking (www.alexa.com). A great place to start searching for medical information.

1. National Institutes of Health (NIH)
www.nih.gov

2. Entrez-PubMed
www.ncbi.nlm.nih.gov

3. WebMD
www.webmd.com

4. MedlinePlus
www.nlm.nih.gov/medlineplus

5. Centers for Disease Control and Prevention
www.cdc.gov

6. AIDS Patent Database
patents.uspto.gov

7. WeightWatchers.com
www.weightwatchers.com

8. Walgreens
www.walgreens.com

9. Food and Drug Administration
www.fda.gov

10. Metadot Portal Server
www.who.int