Payvment is a shopping cart API Web Service that lets you add shopping cart capabilities to any application. The cart API can be used with your own products or with a retailer's affiliate products. The Payvment Shopping Cart API can also be accessed via Yahoo Developer Network's YQL.
When Facebook announced its timeline partners yesterday, there were many familiar names on the list. Some were especially familiar to us because, in addition to now adding their "actions" to Facebook, they also provide APIs to access data created by their users.