• Heartline Cardiac Monitoring Services Diagnostic service offered to physicians, by referral, for the investigation of patients with abnormal cardiac rhythm and function, where the elusive cardiac symptoms are difficult to detect. Requires Shockwave.

• HeartLinx Medical news for physicians practicing cardiology. Search the web for medical information. Share and discuss ideas with fellow specialists.

• HeartSite.Com Provides information to patients who are being evaluated and treated for a heart-related complaint. All contents are reviewed by physicians to ensure accuracy.

• InCirculation Educational resource for healthcare professionals providing access to internationally focused cardiovascular information on the internet.

• Interactive Medical Education An online and CD-ROM interactive case based learning package to teach and learn ECGs.

• Jewish Hospital The Heart and Lung Institute is a well recognized health care facility and pioneer of research for heart and lung diseases.

• Lifestyle Advantage from Highmark and Dr. Dean Ornish Details about the program which uses nutrition, moderate aerobic exercise, stress management and group support to reverse heart disease. Includes program sites, retreats, medicare program, and contact details.

• lipidhealth National Lipid Education Council's cholesterol management resource for healthcare professionals.

• Lipids Online Cardiovascular educational resources for health professionals.

• Michigan CardioVascular Institute Information about this regional medical center specializing in heart health.

• National Registry of CardioPulmonary Resuscitation The 'goal is to provide a centralized, efficient, consistent means for collecting and analyzing data on in-hospital resuscitations'. Sponsored by the American Heart Association.

• North Suburban Cardiology Group, Ltd. Patient information on heart disease, heart-healthy recipes, and the latest heart news.

• RiversideCardiology.com Cardiology medical educational information site with discussion/message board, featured articles, patient of the month, discussion groups, and daily medical news.

• Takeheart Health Check The quality assured method for providing authoritative written assessment and advice for the prevention of coronary heart disease.

• TCTMD A source of clinical and technical information and physician education in interventional cardiology and interventional vascular medicine.

• The HeartMDPhD.com Cardiology Information Portal A comprehensive up-to-date resource for reliable cardiac information.

• The Swiss Cardiovascular Research and Training Network SCRTN offers a graduate and postgraduate training program in Cardiovascular Biology as well as possibilities for scientific exchange with all participating Universities and Laboratories within the network.

• The University of Ottawa Heart Institute Specializes in cardiac health care and focuses on the prevention, treatment and rehabilitation of heart disease through patient care, research and education.

• Theheart.org Disseminates information on treating and preventing cardiovascular disorders. Its audience consists of cardiologists, allied healthcare professionals and referring physicians.

• Vascular Biology Working Group The site offers literature reviews and access to online materials relevant to scientific research and clinical data from the field of vascular biology.