I think it's fair that most effective organizations do the same things. One thing that stands out there is the lack of rigid hierarchy in decision making. If you want to start making PB&Js to help out you can, you don't need to register, get orientation etc.
I also think that Occupy Sandy is building a repeatable and scalable output - that is relief effort for a disaster. They iterate constantly on their ability to gather, parse, and disseminate donation goods and manpower.