“If you've used Flickr or Facebook, have read a blog, and have at least heard of Twitter, you can skip this book - you already get it. I like Clay Shirky, he gives great talks, but here he writes almost in circles, fluffing up simple example stories to many pages and then referring to them repeatedly throughout the book as if they capture some great Truth. Why is it that everyone who writes about the Internet has to throw in a history of information, starting with Gutenberg?”