1. Facebook is used mostly by college kids. While Facebook's base still skews young, about two-thirds of its 134 million American members are older than 26. Outside the United States, Facebook's fastest growth has been among middle-age women.
Facebook messaging is beginning to replace e-mail among the Italian educated elite and among businesspeople in Colombia. And in Indonesia, Facebook's third-largest country, if you use the Internet you are almost certainly a member: Of the 30 million people online there, 27.8 million of them use Facebook.
3. Facebook users are up in arms about privacy. In an experiment, security firm Sophos invited Facebook users to befriend someone named Freddi Staur, whose profile contained almost no information but showed a photo of a small green plastic frog. The request was accepted by 41 percent of users.
Read more at The Washington Post.
