KidsHealth: Heart Disease - Article answers what it is, how you get it, what the signs are and if kids can get it. - http://www.kidshealth.org/kid/grownup/conditions/heart_disease.html
Congestive Heart Failure - Explains this condition where the heart can't pump enough blood to the organs, what causes it, diagnosis, and treatment. - http://www.americanheart.org/presenter.jhtml?identifier=4585
Rheumatic Heart Disease - Learn about this condition where the heart valves are damaged by rheumatic fever. Includes symptoms, prevention, and treatment. - http://www.americanheart.org/presenter.jhtml?identifier=4709
Your Heart: A User's Guide - Explains how the heart works, things that can go wrong, what happens during a heart attack, and health tips. - http://www.americanheart.org/downloadable/heart/102441278271760%20Your%20Heart%20-%20Users%20Guide.pdf
PediHeart Kid Zone - Learn about the heart, explore a few of the common congenital conditions and ask questions. - http://www.pediheart.org/kidzone/index.html