Contact the American College of Cardiology (ACC) for information about heart disease. The mission of the ACC is to work for quality health care for patients with heart disease. The organization provides education, promotes research, and creates management guidelines and standards of care for heart disease.

Call the American Heart Association (AHA) to find your nearest local or state AHA group. The AHA can provide brochures and information on support groups and community programs, including Mended Hearts, a nationwide organization whose members visit heart patients and provide information and support. AHA's Web site also has health information on various heart-related conditions.

The Heart Rhythm Society has an online library that contains in-depth information about normal heart rhythm and types of rhythm disorders. You do not need to be a member to obtain material from the library.

You can also search the Heart Rhythm Society Web site for a heart rhythm specialist practicing in your area.

The U.S. National Heart, Lung, and Blood Institute (NHLBI) information center offers information and publications about preventing and treating heart, lung, and blood diseases.