Before Saul Alinsky there was Sun Tzu, via Cao's Blog.
See Sun Tzu on the Art of War
Here are Alinsky's Rules:
RULE 1: "Power is not only what you have, but what the enemy thinks you have." Power is derived from 2 main sources - money and people. "Have-Nots" must build power from flesh and blood. (These are two things of which there is a plentiful supply. Government and corporations always have a difficult time appealing to people, and usually do so almost exclusively with economic arguments.)
RULE 12: Pick the target, freeze it, personalize it, and polarize it." Cut off the support network and isolate the target from sympathy. Go after people and not institutions; people hurt faster than institutions. (This is cruel, but very effective. Direct, personalized criticism and ridicule works.)