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CDC Centers for Disease Control and Prevention - Your Online Source for Credible Health Information

HowStuffWorks Science has explanations and colorful illustrations related to earth science, life science, and other wonders of the physical world.

Find breaking news & health news on medicine, fitness, nutrition, health care, mental health, drugs, diet, pregnancy, babies, cancer, AIDS, allergies & asthma.

Mayo Clinic offers award-winning medical and health information and tools for healthy living.

wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual. Our multilingual how to manual has free step-by-step instructions on how to do all types of things.

Official home page for King County Government, Seattle, Wash. Features include innovative government initiatives, information on county services and news.

wiseGEEK: clear answers for common questions

Reporting our world daily: original nature and science coverage from National Geographic.

Read doctor-produced health and medical information written for you to make informed decisions about your health concerns.

Voices has information on every topic. Submit your content and get paid.

Health information for consumers on first aid for medical emergencies, accidents and injuries, symptoms and treatment of disease and health conditions, and physical and the emotional well-being that contribute to general wellness.