Social media is unlikely to power revolution in the USA, but then who called the Arab Spring?
Originally called by the Canadian-based anti-consumerist group Adbusters, the Occupy movement lacks the clear message of protests in the Middle East.
Among other things, participants are angry about perceived economic inequality, corporate greed and the pervasive influence of lobbyists on the US political process.
But as copycat demonstrations spread to more than 100 cities, the Occupy movement is hitting newspaper front pages and TV bulletins around the world.