"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. Sunstein argues, for example, that sharing scientific information online would cure some of the worst problems of the US patent system and foster innovation much more efficiently than costly patent litigation. Sunstein recognizes all the potential flaws of such collaborative projects. Groupthink can be dangerous. But, says Sunstein, the wisdom of the many is a great thing, and sharing knowledge online can lead to remarkable advances for companies, for governments and for the rest of us."--Patti Waldmeir, Financial Times
"A survey of the evidence on how information technology affects political debate and institutional decision making. The result is a vivid, readable, and informative work of empiricist skepticism--a show-me-the-money guide to what soars and what stumbles from the stable of Internet dreams."--Jedediah Purdy, American Prospect
"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. As with everything Sunstein writes, this beautiful and clear book has something to teach the experts, and lots to teach the rest of us."-Lawrence Lessig, author of Free Culture and The Future of Ideas
"Infotopia is a persuasive and sophisticated meditation on the ways in which the Web is not just living up to its early hype, but transcending it. Cass Sunstein has given us a brilliant integrative view of how the distributed users of theInternet can band together to produce extraordinary work--along with the circumstances that best give rise to deliberation rather than groupthink."--Jonathan Zittrain, Professor of Internet Governance and Regulation, Oxford University
"Cass Sunstein's new book is a lively illustration of emerging mechanisms for collective rationality never anticipated in the classic writings of Madison, Marx, or Milton (Friedman). Neither a utopian nor a Luddite, Sunstein provides just the right mix of enthusiasm and caution. Ironically, in arguing for the tremendous potential of the group mind, Sunstein demonstrates a command of law, social science, and computer science rarely found in any individual cuthor--and produces a very fun read."--Robert MacCoun, Professor of Public Policy and Law, University of California at Berkeley
"In our knowledge-based world, extracting useful information from society is more important than ever. Sunstein convincingly reveals the limitations of popular processes like deliberation while showing how collectives--under certain conditions--can effectively solve many problems. An engaging read, full of eye-opening examples, Infotopia shows how and why our efforts to harness knowledge must evolve."--Michael J. Mauboussin, Chief Investment Strategist, Legg Mason Capital Management and author of More Than You Know: Finding Financial Wisdom in Unconventional Places

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PREFACE TO THE PAPERBACK EDITION;; PREFACE AND ACKNOWLEDGMENTS;; INTRODUCTION: DREAMS AND NIGHTMARES;; CHAPTER 1: THE (OCCASIONAL) POWER OF NUMBERS;; CHAPTER 2: THE SURPRISING FAILURES OF DELIBERATING GROUPS;; CHAPTER 3: FOUR BIG PROBLEMS;; CHAPTER 4: MONEY, PRICES, AND PREDICTION MARKETS;; CHAPTER 5: MANY WORKING MINDS: WIKIS, OPEN SOURCE SOFTWARE, AND BLOGS;; CHAPTER 6: IMPLICATIONS AND REFORMS;; CONCLUSION: REALIZING PROMISES;; APPENDIX: PREDICTION MARKETS