Sometimes it seems as though everyone is on Facebook, and indeed 900 million people worldwide check their Facebook accounts at least once a month; but there are still millions of Americans who don’t belong to the social network site—and frankly, many see no reason to join. “I’m absolutely in touch with everyone in my life (with whom) I want to be in touch,” says MaLi Arwood. “I don’t need to share triviality with someone I might have known for six months 12 years ago.” (Associated Press)