A viewer for displaying an electronic book and providing for electronic commerce. In conjunction with viewing an electronic book, a user can view information about products and services, view an on-line electronic catalog, and receive samples of products available for purchase. By entering a purchase...http://www.google.fr/patents/US7509270?utm_source=gb-gplus-shareBrevet US7509270 - Electronic Book having electronic commerce features
Electronic Book having electronic commerce features
