Medical Dictionaries

• Aetna InteliHealth:  Merriam-Webster Medical Dictionary
  featuring Harvard Medical School's Consumer Health Information
  

• Medlineplus Medical Dictionary

• PubMed - National Library of Medicine
  

Medical Encyclopedias

• AllRefer Health - Medical Encyclopedia
  ADAM comprehensive information on  over 4000 topics
  
• Medical Encyclopedia  [MSN health & fitness]
  Over 5000 articles about diseases,  medications, tests, etc.
  
• MedlinePlus Medical Encyclopedia
  Over 4000 articles about diseases, medications, etc.
  

Medical Resources

• Medschool for You [Canadian]
  will provide Canadian patients with access to free, convenient, interactive and easy to understand information on various health related top
• Library of Congress Reading Room
  
• Medscape
  
• Medlineplus
  
• PubMed - National Library of Medicine
  view research publications
  
• BioMedSearch
  includes some journals not available on PubMed
  
• National Library of Medicine  USA 
  

• Reuters Health
• Steady Health.com
  
• Web MD Fibromyalgia & CFIDS