What I wonder about Facebook is the effects of sharing information with people you don't really want to share information with. For instance, the older generations are all signing up for Facebook now; it's an phenomenon for 'all the family.' Therein lies its problem: teenagers, tweenagers, don't want the grown-ups to know everything about their social lives. It starts to get awkward.

I predict some migration of young people to newer, trendier social networks because of this issue.