"Commies" provides some great insight into this nefarious world of back-stabbing, ideological litmus tests-that only apply to conservative thinkers, of course-and the general insanity of the system of higher education that prevails on most college campuses today.
Sounds like one that needs to be added to the list :-)
Amazon.com Books Commies A Journey Through the Old Left, the New Left and the Leftover Left
It is a great read.
There are a lot of pop cultural references in there-apparently, Radosh at one point was on speaking terms with people like Bob Dylan and Joan Baez-but for the most part, it focuses on his gradual but irreversible estrangement from his fellow-travelers in the academy.