Amazon's US 7,739,139

First claim of US 7,739,139:

A computer-implemented method, comprising: receiving and storing personal data of a first user of a computer-based service, said computer-based service accessible to users over a network, said personal data specified by the first user; providing a user interface for users to establish contact relationships with other users of the service such that each user can have one or more contacts, said user interface enabling a user to identify other users of the service, and to selectively initiate the generation of requests to establish contact relationships with the identified users; receiving a request from a second user of the service to establish a contact relationship with the first user, said request submitted to the service over a network via said user interface; sending a notification of the request to the first user over a network; providing an option, in connection with said request, for the first user to grant permission for the second user to view at least some of the personal data of the first user; and in response to the first user granting said permission, providing the second user access to at least some of the personal data of the first user via a contact information user interface of the service, such that the second user is provided access to data that would not otherwise be accessible to the second user via the service; wherein the method, including receiving and storing the personal data, providing the user interface, receiving the request, sending the notification, providing said option, and providing the second user access, is performed by a server computer system.