There isn't a single model that will fit all cases. But for your specific example, micropayments. Advertising has kind of starved out the development of micro

There isn't a single model that will fit all cases. But for your specific example, micropayments. Advertising has kind of starved out the development of micropayment systems over the last decade, but it looks like bitcoin has a chance at filling that niche. http://gigaom.com/2013/08/06/can-bitcoin-enable-the-fabled-micropayments-revolution-coinbase-thinks-its-worth-a-shot/ http://gigaom.com/2013/08/06/can-bitcoin-enable-the-fabled-m...