MedicineNet - Heart Disease In depth medical content on disease prevention and treatment. http://www.focusonheart.com
Principal Health News - Heart Center News, treatments, prevention tips, special reports and other resources. http://www.principalhealthnews.com/topic/heartcenter
WebMD - Heart disease Information written and reviewed by WebMD doctors. http://my.webmd.com/medical_information/condition_centers/heart_disease/default.htm