"This book is revolutionary not only in its scope, but in the way it came to be. Through the wiki collaboration process, it evolved and developed online at ContentNation. com - literally created by the social media it examines. Hundreds of individual publishers contributed to its content. If you have sent an e-mail, voted in a Web poll, posted a video on YouTube, or sent a text message, you are part of Content Nation, Welcome to the evolution. "--Jacket.