Though the personalized, hand-made signs of protesters may be the most powerful, one thing the Occupy movement has had going for it, from the beginning, is great posters. Remember the ballerina dancing on the Wall Street bull? The movement has now grown from a few thousand people in Manhattan's financial district tens of thousands in cities around the world—and the posters multiplied alongside it.
Click here to view the slideshow.
How did a small protest in lower Manhattan go viral? With more than 50 cities involved, #OccupyWallStreet is already changing the debate.
There are many things you can do to be part of this growing movement—and only some of them involve sleeping outside.