Social networks like Facebook and MySpace are supposed to be limited to people who are ages 13 and up, but this is far from being the case, according to the Pew Internet & American Life Project, which found that nearly half of American 12-year-olds -- 45% -- have profiles on these sites. Assuming the 12-year-old population has remained stable, around 3.96 million since the latest Census projections in 2009, that means 1.78 million 12-year-olds are evading Facebook's age limits. ...Read the whole story