Times Square, Occupy Wall Street rally, Saturday, October 15, 2011. Photo by Micah L. Sifry Here's a question to ponder: Did Occupy Wall Street succeed simply because it was non-hierarchical in method, had smart framing in tune with public anger about the economy and Wall Street, and made really effective use of social media? If that was all it took to ignite a self-organizing movement for economic justice, then why didn't a very similar effort, called "The Other 98%," take off last year? Why didn't the US Uncut movement, a spin-off of an ongoing street protest movement in England, take off here this past winter? Why didn't Van Jones' new "Rebuild the Dream" movement, which was launched this summer with the...