Micro-payments
massness: I'm trying to setup a website that will allow a small community to sell stuff to each other, but to make the whole thing viable I need to figure out a way to take a micro-payment from the seller at the time they upload their listing. I'm not too keen on the SMS model, the aggregate billing option is one that I might end up taking. Just thought that micro-payments would have been a solved issue by now and easy to implement.