Eli Pariser speaks about what is happening to the internet.

http://www.ted.com/talks/eli_pariser...r_bubbles.html

A review of Eli Pariser's Book the Filter Bubble by 350.org organizer Bill McKibben:
"You spend half your life in Internet space, but trust me—you don't understand how it works. Eli Pariser's book is a masterpiece of both investigation and interpretation; he exposes the way we're sent down particular information tunnels, and he explains how we might once again find ourselves in a broad public square of ideas. This couldn't be a more interesting book; it casts an illuminating light on so many of our daily encounters."