Laptop (IMAGE) Michigan State University Caption College students spent 37 minutes, on average, surfing the net in class -- and their grades suffered for it, according to a Michigan State University study. Credit Michigan State University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.