http://www.nhlbi.nih.gov/health/public/heart/chol/hbc_what.htm
National Heart, Lung, and Blood Institute, National Institutes of Health
Find out what your cholesterol numbers mean and what treatment your doctor may prescribe to help lower your cholesterol level. Includes a tool to estimate the risk for having a heart attack, and outlines ways to reduce risk. Also contains a list of resources for further information.