I've been trying to get this message through to my difficult child and her friends for a long time. They seem to think that I'm just trying to annoy them and get in the way of their online socializing. Most of them continue to post personally identifiable information MySpace, it's really dumb...
Here's a link to an older article about this topic. It originally appeared in the New York Times.
http://www.banderasnews.com/0606/nt-undermined.htm
