I read Zimbardo's The Lucifer Effect, which discusses his Stanford prison experiment, such a strong meme... It was interesting to read some of the details about the experiment, but it becomes very clear that the whole experiment never really shows anything beyond 'hmm, that's interesting'. There's no control-group, the researcher actively plays a role in the experiment, and the whole thing ended after only a few days.... From that, Zimbardo has made his career...

After that, the book goes to some real-life cases such as the Abu-Graib prison abuse, where Zimbardo wields his universal hammer once more.. Overall, a lot of interesting things in this book, but still I found it a bit lacking...