Amazon.com Product Description (ISBN 0195189280, Hardcover)

The rise of the "information society" offers not only considerable peril but also great promise. Beset from all sides by a never-ending barrage of media, how can we ensure that the most accurate information emerges and is heeded? In this book, Cass R. Sunstein develops a deeply optimistic understanding of the human potential to pool information, and to use that knowledge to improve our lives.
In an age of information overload, it is easy to fall back on our own prejudices and insulate ourselves with comforting opinions that reaffirm our core beliefs. Crowds quickly become mobs. The justification for the Iraq war, the collapse of Enron, the explosion of the space shuttle Columbia--all of these resulted from decisions made by leaders and groups trapped in "information cocoons," shielded from information at odds with their preconceptions. How can leaders and ordinary people challenge insular decision making and gain access to the sum of human knowledge?
Stunning new ways to share and aggregate information, many Internet-based, are helping companies, schools, governments, and individuals not only to acquire, but also to create, ever-growing bodies of accurate knowledge. Through a ceaseless flurry of self-correcting exchanges, wikis, covering everything from politics and business plans to sports and science fiction subcultures, amass--and refine--information. Open-source software enables large numbers of people to participate in technological development. Prediction markets aggregate information in a way that allows companies, ranging from computer manufacturers to Hollywood studios, to make better decisions about product launches and office openings. Sunstein shows how people can assimilate aggregated information without succumbing to the dangers of the herd mentality--and when and why the new aggregation techniques are so astoundingly accurate.
In a world where opinion and anecdote increasingly compete on equal footing with hard evidence, the on-line effort of many minds coming together might well provide the best path to infotopia.

Amazon.com Product Description (ISBN 0195340671, Paperback)

As the dire history of planned economies highlights, small well-informed groups of people will often make far worse decisions than large numbers of people, acting independently, would make. In Infotopia, Cass Sunstein looks at the "wisdom of the many"--particularly as seen on today's Internet--illuminating many new ways of collecting and evaluating information and making effective decisions.
Sunstein shows how the on-line efforts of many people coming together help companies, schools, governments, and individuals to amass ever-growing bodies of accurate knowledge. He describes for instance how Wikipedia, through an endless flurry of self-correcting exchanges, collects information on everything from politics and business to science fiction. Open-source software--which licenses programmers to use, change, and improve the software--taps the power of large numbers of people to spur technological development. And prediction markets--such as the famous Iowa Electronic Market, where people bet real money on the outcome of local and national elections--collect information in a way that allows companies, ranging from computer makers to Hollywood studios, to make better decisions about the future. Sunstein reveals why these revolutionary new methods are so astoundingly accurate and he also shows how people can take advantage of "the wisdom of the many" without succumbing to the dangers of herd mentality.
"Sunstein, one of the biggest of America's internet big thinkers, has written an intriguing new book in which he argues that Hayek's insights about the genius of markets are equally true of the internet."
--Patti Waldmeir, Financial Times
"This extraordinary work synthesizes the latest in how we know, with the latest in what the web has become, to map more compellingly than any other book the promise and risk of the information society."
--Lawrence Lessig, author of Free Culture and The Future of Ideas
"Vivid, readable, and informativea show-me-the-money guide to what soars and what stumbles from the stable of Internet dreams."
--Jedediah Purdy, American Prospect