Methods and systems for providing differentiated service that may be employed, for example, to deliver content or services in a network environment. Differentiated services that may be so delivered include both differentiated information service that may be implemented, for example, at the system and/or...http://www.google.es/patents/US20030236745?utm_source=gb-gplus-sharePatente US20030236745 - Systems and methods for billing in information management environments
Systems and methods for billing in information management environments