A digital object may be routed via a network. Routing of a digital object may be based in part on a requested service, and/or on an ability of an intermediate node to provide the requested service, and/or on a willingness of the intermediate node to provide the requested service. ...http://www.google.de/patents/US20070291773?utm_source=gb-gplus-sharePatent US20070291773 - Digital object routing based on a service request
