Taran Rampersad wrote a good review for the book at http://www.knowprose.com/node/18880.
I have copied the last three paragraphs from Taran's review
"Part three brings it all together in a way such that it is greater than the sum of the two other parts. Code, diagrams and the author's voice are clear and left me wondering what else is going to go into this book this August.
Overall, I am very impressed with this work and even excited about the book - something which may something about myself as much as the book. It is technical, it is theoretical - but most importantly, it is practical and focused throughout a diverse group of disciplines that, through the author, are integrated very well.
Since it is an unedited draft, I will not give the book a formal review at this point. But I will say that it is what many people have been waiting for - an explanation for how these things work. Great stuff. Collective Intelligence in Action is worth an early look - or waiting for".
Thanks Taran for taking the time to look at the book and writing the review.