Facebook 101 Let's start with a little statistic: Facebook has over 1 billion active users; Earth has about 7 billion users by last count. Now, I know book dealers are not always known for their math skills, but I'm pretty sure that works out to about 1 in 7 people ON THE PLANET who use this particular social network. But don't let the numbers intimidate you. Facebook is as much about fostering sm... [more]