The Agency for Healthcare Research and Quality  (AHRQ) has helpful online guides:
The American Cancer Society provides the NexProfiler Treatment Tools . This tool feeds details of your condition into a search of the research literature and gives statistical results for various treatments. It then suggests topics for you to discuss with your provider.
Blue Cross and Blue Shield offers Healthcare Facts 
Learn about your eligibility for low-cost insurance at Centers for Medicare and Medicaid Services 
Consumer Reports Health  has a guide to making health decisions.
Food and Drug Administration  (FDA)
FDA's Center for Food Safety and Applied Nutrition 
FDA's Recalls and Safety Alerts 
Federal Trade Commission  (FTC)
The Harvard Medical School offers lists of questions to ask for specific situations .
Institute of Medicine Study. (1999) To Err is Human: Building A Safer Health System .
Joint Commission on Accreditation of Healthcare Organizations (JCAHO) brochure that provides information on how you can avoid being the victim of medical errors, Speak Up: Help Prevent Errors In Your Care .
Kaiser Family Foundation. Trends and Indicators in the Changing Health Care Marketplace , 2004 Update.
The Medical Library Association  has a very simple glossary that translates medical terms into everyday language. The glossary is available in Spanish.
Medline Plus  offers a number of articles , including Getting the Most Out of Your A Visit to Your Doctor and Tips for Talking to Healthcare Professionals. There are a number of resources for specific health situations, such as cancer and heart disease.
National Center for Complementary and Integrative Health 
National Center for Health Statistics. Fact Sheet: Actual Causes of Death in the United States , 2000 .
National Coalition on Health Care. Health Insurance Cost .
The National Institute on Aging suggests ways to discuss health concerns, medicines, and issues important to older people .
Prepared Patient is an interactive website designed to help people find good health care and make the most of it.
Pubmed , a website used to research articles.
American Medical Association. American Medical Association Guide to Talking to Your Doctor. John Wiley and Sons, NY. 2001.
Edward T. Creagan (Mayo Clinic physician). How NOT to Be My Patient. Health Communications, Inc. FL. 2003.
John Knowles. Doing Better and Feeling Worse. W.W. Norton & Company: New York. 1977.
Parker-Pope, T. Wall Street Journal. 2005. Published in the Minneapolis Star & Tribune:
Bernie Seigal MD and Yosaif August. Help Me to Heal: A Practical Guidebook for Patients, Visitors and Caregivers. Hay House, Inc., CA. 2003.
Soden, Kevin and Christine Dumas. Special Treatment: Ten Way to Get the Same Special Health Care Your Doctor Gets. Berkley Publishing. NY. 2003.