prefaceintroduction1. identity : why do teens seem strange online?2. privacy : why do youth share so publicly?3. addiction : what makes teens obsessed with social media?4. danger are sexual predators lurking everywhere?5. bullying : is social media amplifying meanness and cruetly?6. inequality : can social media resolve social divisions?7. literacy : are today's youth digital natives?8. searching for a public of their ownappendix: teen demographicsnotesbibliographyacknowledgmentsindex