Cardiovascular Health:

• American Heart Association:
  This is America's premiere organization whose mission is to fight heart disease and stroke.
• Coronary Artery Disease Risk Assessment:
  Cigarette smoking, high blood pressure and high blood cholesterol are major risk factors for coronary artery disease. Your chances of developing angina, having a heart attack or dying from heart disease within the next eight years increase with each risk factor you have. You can estimate your risk of developing heart disease by taking the short test at the Harvard Medical School's Consumer Health Information site.
• Heart: A Virtual Exploration:
  This is the best online exploration of the heart that I've seen yet. A complete multimedia-rich tutorial.
• Heart Information Network:
  HeartInfo.org is an independent, educational Web site that provides consumers with instructional information and services for the prevention, diagnosis and treatment of cardiovascular disease. Backed by an internationally renowned panel of cardiologists, Heartinfo is dedicated to empowering and encouraging consumers and health care professionals in their effort to reduce the risk of cardiovascular disease.
• Medtronic:
  Loads of information about coronary artery disease.
• Nova Online: Cut to the Heart:
  This portion of the Nova web site is based on a past television program. This section contains information about the pioneers of heart surgery, treating a sick heart, several images of "troubled hearts," and an image map of the human heart.