AHRQ: Agency for Healthcare Research and Quality
Comprehensive site containing clinical information, evidence-based practice reports, data & surveys, and information aimed for consumer & patients

Cancer Topics

CDC Travel Information

Centers for Disease Control
Excellent source of information on variety of health and safety topics

Environmental Health Perspectives
Research and news on the impact of the environment on human health

Flu.gov
Information for consumers, communities, and health professionals

Food and Drug Administration
Links to various drug information and other aspects with search capability.

Genetics Home Reference

Health Square
Prescription drug information, using PDR (Physician Desk Reference) and First DataBank. Also, descriptions of medical conditions/diseases.

Health United States

Healthfinder
Information and tools to help consumer stay healthy.

International Classification of Diseases

Medicare Basics

Medline Plus Medical Encyclopedia

Merck Manual of Diagnosis and Therapy

MyPyramid.gov
Interactive site that deals with nutrition and exercise.

National Center for Health Statistics

National Guideline Clearinghouse
For the clinical guidelines for many diseases and health conditions.

National Health Information Center
Health information referral service

National Institute on Drug Abuse (NIDA)
Resources on drug abuse, treatment, crime, prevention, and research.

New Routes To Community Health
Immigrants' health concerns organized by various topics and ethnicity

Physical Activity and Health
A report of the Surgeon General.

Pub Med
For free medline searching.

PubMed Central
Full text of many biomedical and life sciences journals. Browse or search.

Reports of the Surgeon General
Includes official reports and other publications.

Surgeon General's Reports
Reports on Smoking, from 1964 to current.