Of course, Milgram is most famous for his shock experiments, in which he demonstrated the extent of a normal person's obedience to authority. Many people believe these experiments to be unethical in their treatment of the participants; however, I disagree. I think these particular experiments are very important to understanding human nature. They help to give an explanation of the willingness of people to follow leaders who demand them to be cruel. While the experiments were not perfect (there could have been more variations to account for other variables), they gave an unintuitive and important answer.
Milgram also performed work in other areas: using novel methods of determining public opinion through the lost letters experiment, and working on the small world phenomenon with his experiments of delivering a package from one random person to another.
I think the fact that he has been given little to no recognition from his colleagues is pitiful. Milgram approached his field with great enthusiasm and came up with clever ways of understanding humanity. I think it is unfair for his colleagues to use his work but not give him proper appreciation.
I enjoyed reading this biography, and learning a little more about the man behind some of the most important, most controversial, and most ingenious experiments in the history of his field.