I would recommend anyone interest in the topic to check out the book https://en.wikipedia.org/wiki/If_We_Burn. The author covers (in depth) a solid analysis of the failures to enact long term change across several major "revolutionary" movements over the last couple year (including the Arab Spring and Occupy among others). I think his analysis is quite good and points at significant issues in organizational leadership, co-opting, and other structural failures (or adaptations by governments) that illustrate classic approaches to mass protest are more difficult to achieve desired goals in modern times. Worth a read if you have the time.