(5/5 stars) This is an exploration of shame as a punishment, as a fundamental human impulse, as a force for good and bad. Ronson goes into a little bit of the history of how shame has been used in the past, but focuses especially on how shame functions in our internet-based society today. To wit, he explores several contemporary case studies in shaming.
This book functions in some ways as a collection of essays rather than a structured exploration of ideas. As such, there are points where he pursues aspects of shame that seem to be a digression from the core theme, for example the parts about Radical Truth and humiliation paraphilia. Those parts don't make the book less interesting, but readers should be warned: you probably won't come away with any strong conclusions about what can be done about internet lynch mobs.
In sum, this book is funny and thought-provoking. I highly recommend it.