A method for using the screen names of users are used to appropriately tailor a service for the users. If the service is a restricted service, then the screen name is used as the basis for deciding whether access should be granted to ensure that access is granted to a limited set of users. Alternatively,...http://www.google.fr/patents/US7146404?utm_source=gb-gplus-shareBrevet US7146404 - Method for performing authenticated access to a service on behalf of a user
Method for performing authenticated access to a service on behalf of a user