A protocol for peer-to-peer money transfers with zero or low fees. It uses an
artificial currency called Bitcoins. Even though all transactions are tracked in
public logs, a major use is illegal international drug sales. For anonymity, you can
create a new receiving address for each payment. There is no public record of who
owns each address. For the most part, you must convert Bitcoins to dollars or Euros
before you can buy anything. Think of this as like an international Western Union
wire transfer. You must protect your electronic currency with wallet backup. If you
lose it, it is lost.