The whole point of Facebook is to keep up with your friends, right? You might think that adding friends means having more fun, but a small Scottish study says it's adding to our stress. A report by the University of Edinburgh Business School has found that increasing friends -- specifically different groups of friends -- increases the potential for stress. It's hardly earth-shattering news, but including parents or employers as Facebook friends resulted in the greatest increase in anxiety, according to the report. Read the full story at CNET.