Keeping in line with their mission to find more ways to make money, Facebook's recently announced video ads service will be hitting profiles near you no later than the summer. They'll last up to 15 seconds, and the first time you see one each day, the audio will be muted (how kind of you, Facebook). If you unmute it, the video will replay. Expect to see a lot of soda and chocolate ads since some of Facebook's most prominent advertisers are Coca-Cola and Nestle. Now just make extra sure to have your volume off when surfing Facebook during class.