General Health                     
Hardin Meta Directory of Internet Health Sources
Health and Age
Healthfinder
imedicine: Disease Database
Interactive Body
Mayo Clinic
Merck Manual
Medicare
NOAH: New York Online Access to Health
PubMed
Virtual Hospital
MedlinePlus Health Information from the National Library of Medicine
ClinicalTrials.gov - Linking Patients to Medical Research
Centers for Disease Control and Prevention
Office of Rare Diseases
KidsHealth
Medscape Family Medicine
Child and Family WebGuide A resource for parents provided by Tufts University which describes and evaluates sites that contain research-based information about infants, children and teens.
Family Doctor Health information for the whole family from the American Academy of Family Physicians
Find a Flu Shot

Alternative Medicine
Whole Health MD

Cancer
American Cancer Society
CancerFacts
National Cancer Institute
Oncolink: Cancer Center University of Pennsylvania
BreastCancer.org: Your Lifeline to the Best Medical Information About Breast Cancer
Nutrition
The Nutrition Source

Pennsylvania Dietetic Association
PA Department of Health
Directories
AMA Physician Select

Environmental Health
CDC Environmental Health

First Aid
Mayo Clinic First Aid Guide

Hospitals and Health Care Facilities
Lehigh Valley Hospital & Health Network
St. Luke's Hospital  & Health Network
Sacred Heart Hospital
Good Shepherd
Health Grades
Nursing Home Compare
Rating America's Nursing Homes
U.S. News: America's Best Hospitals
Find a Hospice Program: The National Hospice and Palliative Care Organization
Veterans Health Administration Facilities in PA

Prescription Drugs
FDA: Buying Medical Products Online
MedlinePlus Drug Information
PDR Health
Rx List

Mental Health
Depression and Bipolar Support Alliance

Heart
American Heart Association

Women's Health
The North American Menopause Society
The Federal Government Source for Women's Health Information