County Health Rankings - A joint effort of the Robert Wood Johnson Foundation and the University of Wisconsin Population Health Institute, this site ranks counties on various health factors within their states.
National Center for Health Statistics - This division of the Centers for Disease Control and Prevention gathers statistics on all manner of health topics, from aging and birth rates to diseases and physical activity.
Statistical Abstract: Health & Nutrition - Statistics from the U.S. Census Bureau that cover "health expenditures and insurance coverage, including Medicare and Medicaid, medical personnel, hospitals, nursing homes and other care facilities, injuries, diseases, disability status, nutritional intake of the population, and food consumption."
WISQARS (Web-based Injury Statistics Query and Reporting System) - Statistics from the CDC.
Zygote Body, originally called Google Body, is an anatomy tool that allows you to manipulate a virtual human body. You can highlight various body systems and rotate the images into different views. Structures are named and you can pin them to help in studying. This tool works best with the Chrome browser and may not work with some computers' video cards. A free sign-up is required.
Human Body Maps is an interactive anatomy tool, but with the ability to rotate images in 3D. Clicking structures retrieves relevant text.
InnerBody is also an interactive anatomy system that allows you to study particular body systems
The Medical Animation Library from the Penn Medicine website provides links to many medical animations arranged by body system and medical specialty.
The Wellcome Library has over 100,000 images related to the history of medicine available to download free under a Creative Commons license.
Eskeletons from the University of Texas Anthropology Department. A great way to study the human skeleton -- and the skeletons of other primates. Details photographs can be studied from several viewpoints.
The U.S. National Library of Medicine's Images from the History of Medicine collection provides access to thousands of digitized images, including portraits, photographs and posters.
This site from the U.S. National Library of Medicine, provides up-to-date authoritative information on a wide range of health issues and links to national advocacy and health groups related to specific diseases and conditions.