I just started reading this book by David Graeber, an anthropologist who was one of the organizers of OWS in NYC. He's an anarchist, and this is somewhat like Mutual Aid but about debt.
I think it's worth reading. It discusses the origins of money. The thing is, unlike econ texts, Graeber uses anthropological studies to explore how people used debt before money existed.
He also demolishes the idea that barter preceded money. In fact, it is only a type of trade used when currency becomes scarce, or you're dealing with hostile neighbors.
It gives a very good explanation of Chartalism or Cartism or Chartism. Chartism is the theory that all money is created with debt, and therefore,we shouldn't worry about government debt. Don't worry, because that debt is just a part of the money supply.
This flies in the face of traditional classical economics. It also goes against the "sound money" or "gold bug" monetary policies.
I'm about 1/3 of the way through... it's interesting so far.