US20120054680A1
патент
A method comprises receiving at a data exchange a request to review user data that has been gathered by one or more data holders and that relate to a given user, where the user data is being marketed for use in the data exchange, where the request includes an identifier associated with the user. The method further comprises providing a user interface for the user to review the user data wherein the user data includes information, if any, regarding user lists that the user belongs to and an identity of a data holder that is associated with the
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