A network-based payment service provides functionality for site operators to add payment links or objects to their sites. When a user selects such a link or object, the payment service may charge a fee to an account of the user, and may redirect a browser of the user to content associated with the link....http://www.google.ca/patents/US7542943?utm_source=gb-gplus-sharePatent US7542943 - Computer services and methods for collecting payments from and providing content to web users
