American Express takes aim at PayPal with Revolution

With its deal to buy Revolution Money, American Express is taking aim at the growing market for online and alternative payments, in a challenge to recognized leader PayPal, analysts say.

Bitcoin ATM builder targets money-transfer business

In a makeshift office - a living room crowded with desks, monitors and a beanbag chair - programmers are hacking away on computers, aiming to make their mark on the multibillion-dollar financial services industry.