Stripe is a developer-friendly way to accept payments online and in mobile apps.
Klarna Checkout takes the tries to take the hassle out of buying on mobile devices.
Facebook Connect allow users to connect their Facebook identity, friends and, privacy to any website. Facebook Connect is Facebook's first attempt to allow access to Facebook user data outside of Facebook itself. The company is describing it as giving third party applications access to much of the same data as Facebook applicat...
The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook