[DavidPiper]

Surprised not to see Cal Newport's "Digital Minimalism" on the list - though the author may just not know about it.

I finished the audiobook yesterday, and highly recommend it. When framed against the active, intentional social media strategies suggested in the book, the argument that "normal, every-day" social media usage is just like smoking becomes very persuasive.

EDIT: Also recommend "Amusing Ourselves to Death" by Neil Postman. It's about television, but every salient point applies directly to modern social media as well.