The Dumbest Generation?

A continuation of my stream of thought on literacy and definitions of literacy.
http://www.latimes.com/features/books/la-et-book5-2008jul05,0,3980465.story

A discussion of the book:
The Dumbest Generation
How the Digital Age Stupefies Young Americans and Jeopardizes Our Future, or Don't Trust Anyone Under 30
Mark Bauerlein
Tarcher/Penguin: 272 pp., $24.95

Has the growth of social networking substantially changed the nature of adolescence or is it just another expression of teens need for interaction. How is this use of the Internet affecting the intelligence and the learning of today's youth? I must read this book for myself.