Health
Consumer Health
AMA Physician Select
HealthWeb
Medical Library Association
MedicineNet.com
Merck.com: online medical manuals.
National Library of Medicine
WebMd.com
Nutrition
Dietary Guidelines for Americans
Food Guide Pyramid Information
National Institute of Health Office of Dietary Supplements
Specific Disorders
Cancer.gov
Centers for Disease Control
CIDRAP (Center for Infectious Disease and Policy)
POPline: Reproductive health literature.
Environment and Statistics
EPA Publications
National Center for Health Statistics
National Safety Council
Scorecard: Provides local environmental information by zip code.