The internal struggle in the MIT AT Lab due to Lisp and Symbolics seems more interesting than I thought. I read Wikipedia, and it says "there were two AI Lab people who choose not to be employed by either: Richard Stallman and Marvin Minsky". Wow, I never expected to see these two names in the same line.
Are there any good book that covers this part of the history and its connection to the later development of free software movement?