Here is a link to a great article on the importance of letting your meats rest.
http://www.seriouseats.com/2009/12/how-to-have-juicy-meats-steaks-the-food-lab-the-importance-of-resting-grilling.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+seriouseatsfeaturesvideos+%28Serious+Eats%29