If you want to know more about how teenagers really use the Internet and what they think about all things connected to it, there’s no better source than danah boyd.
Her book It’s complicated- the social lives of networked teens is available here (free to download as a pdf).
If you have less time, here are two articles with her, one from The Telegraph and one from the The Verge.
Her Wikipedia page is rather brief but at least has links to some more interviews and publications.