Online social networks (such as Facebook, Twitter, Instagram, Tumblr, etc.) are a fun way to keep in touch with friends and family, but if you're having trouble logging off, there's a good chance you're spending way too much time on them.
Take the following quiz to find out if you should be concerned.
3. When doing homework or studying for a test, do you find that you spend more time checking your online social networks than thinking about your school work?