Fear of Facebook

How many Facebook friends do you have? In a current Time article,Suffering from Facebook fatigue?, you can read about the perils of Facebook overload. At the risk of sounding like a complete Old Fogey, I have to say that I don't get it. I don't get why people invite zillions of people--like me--to join some group like "Let's all fall down the stairs" or why I get vampire bites or why I get asked about my preferences in movies or whatever? The same students who complain about not having enough time apparently change their profile picture every thirty seconds and engage in twenty-eight Facebook applications. Might this be an experience that sucks up just a bit too much of our time?