Privacy-protecting user tracking and targeted marketing

摘要: A method, system, and computer-readable medium for assisting in targeting information to users while protecting the privacy of those is described. Various transaction and/or other user-specific may first be obtained from one or more a variety sources, can then provided user targeters that desire target match specified criteria. Information about matching manner obscures identity users. After targeter selects identity-obscured which targeted provided, various ways. In some situations, marketing such as an advertisement discount promotional benefit available, at POS location.