Dinero Privado.

Maestre_de_Campo

De Bruce Champ, interesante no solo porque permite una aproximación histórica al dinero privado, además da algunos indicios del fenómeno en internet:

With advances in information and communication technology—not the least of which is the ability to embed a wafer-thin computer chip into the equivalent of a credit card—it seemed certain that a new form of private money, “electronic money,� would arise as an alternative to paper money and coins in everyday transactions. More importantly, the inadequacy of cash as a method for making payments in the growing world of electronic commerce seemed to lay the foundation for the emergence of electronic money.