I found this article from yesterday on the New York Times website. It discusses the demographics of all of the protestors in NY as well as the protestors abroad in European cities and beyond. One of the things that I found most interesting about this article is its discussions of the parallels between Occupy Wallstreet and the Tea Party from April of 2009. Even though they have were different motives, there are some similarities.
Occupy Wall Street Article October 18, 2011