"Smith comprehensively examines an idea called collective intelligence (CI) in the overall process of knowledge construction. The purpose of this book is to explore this idea, with an effort to build a framework for research and theory, as well as to point out real-world applications and potential pitfalls. This purpose is fulfilled....The best features of this book are its organizational fluency and easily understandable writing style....it stimulates the reader to follow further developments on the subject."—Computing Reviews