danah boyd (http://www.zephoria.org/) is the person to read for that one. Try here (http://www.danah.org/papers/AAAS2006.html) or here (http://www.zephoria.org/thoughts/archives/2005/11/02/growing_up_in_a.html) - there's more but those are the pieces I've del.icio.us (http://del.icio.us/skydancer)'ed.