I was updating (and trying to fully understand) my Facebook and LinkedIn pages (I have a book I'm trying to sell) and noticed that both President Obama and Mitt Romney have pages and "followers." Checking the numbers (Obama's now includes me):
Obama: 147,087
Romney: 60,693
Don't know if it means anything, or is simply that the site is not Facebook. But I imagine that it's not as easy to boost one's numbers on this site.