Absolutely LOVED this book. In particular I found the whole Facebook experiment absolutely fascinating, so much so that I think I will start to try it myself. I think you should buy this book even if just to read about that experiment alone. It is the absolutely modern way to find oneself.
The book is a feast of philosophy and conspiracy, a delightful mixture of whodunnit with the most amazing insights into human nature and social organization. One of the core themes is the eternal question, what makes us tick?
In sum the book provides something for many tastes, especially the conspiracy buffs among us will find it very interesting indeed. Probably the best way to spend $4.99. Highly recommended.
(reviewed the day of purchase)