Kevin, i posed this as a question, not because I have any doubt but because the term "revolution" is not currently in vogue. Nevertheless, what you observed is correct - many of the classic philosophers were theorists of revolution. One can certainly start with Machiavelli whose Prince survives on at least the tacit consent of the governed - if he loses that, he will be overturned ie revolution. Locke explicitly builds a theory of revolution as does Rousseau. Of course, Jefferson's words echo Locke. Sun Tzu and Confuciuos have much to say on the subject. And, of course Marx and his successors were all about theories of revolution. For a modern theorist, Ted Robert Gurr's Why Men Rebel is a modern classic.

Cheers

JohnT