American Heart Association(http://www.americanheart.org/) This is the official website of the American Heart Association, with links to the American Stroke Association (http://strokeassociation.org), a division of the AHA. The "Heart and Stroke A-Z Guide" provides a broad spectrum of information, including warnings signs for heart disease and stroke, an easy-to-use reference guide, a legislative action package, family health information (nutrition, exercise, children, programs or books), risk awareness for patients, scientific and professional information, solicitation options for volunteers, local AHA chapters, and donations. There is information on everything from scientific guidelines to training guides to ads for the Jump Rope for Heart program or The American Heart Walk. Of special note are the public advocacy pages with legislative priorities. Sponsorship is clear, content is factual, and policy briefs are clearly identified as such.