Kanuck54 writes: "Today Amazon officially launched their Flexible Payments Service, firing a shot across the bows of both PayPal and Google Checkout. With the special fee structure on payments below ten dollars — all the way down to a quarter-cent fee on a one-cent transaction — it looks like micropayments just got a whole lot closer to reality. Integration is already completed or well-underway for an online invoicing service, a personal finance website, and a few others hand-picked by Amazon for early participation. There's even talk of a Facebook application for settling personal debts. With no setup or monthly fees and some very good rates, it looks like the online payment industry is about to feel the effects of a major shake-up."