Systems, methods and media for awarding credits based on provided usage information are disclosed. More particularly, hardware and/or software for collecting and disseminating usage information related to electronic documents and for awarding usage credits to users in exchange for providing usage information...http://www.google.fr/patents/US7433866?utm_source=gb-gplus-shareBrevet US7433866 - Systems, methods, and media for awarding credits based on provided usage information
Systems, methods, and media for awarding credits based on provided usage ...
