Origin and historical development In the early 1920s appeared in the United States, catalog sales, driven by wholesale companies. This sales system, revolutionary for its time, is a catalog of photos illustrating the products to sell. This allows better reach people, because there is no need to attract customers to the stores. This allowed the stores to reach customers in rural areas have, that by the time this arrangement was developed there was a large mass of people assigned to the field. In addition, another important point to note is that potential buyers can choose the products in the comfort of their homes without the assistance or pressure, as the case of a seller. The catalog sales took accelerated with the advent of cr cards in addition to determining a relationship of anonymity between you and the seller.In the early 1970s came the first commercial relationships using a computer to transmit data, such as purchase orders and invoices. This exchange of information, although not standardized, brought with it improvements in manufacturing processes in the private sector, including companies in the same sector. In mid-1980, with the help of television, a new form of mail-order, also called direct sales. Thus, the products are shown with more realism, and the dynamics that can be displayed by highlighting its features. Direct selling is concrete and usually by phone with cr card payments. In 1995 members of the G7/G8 countries the initiative created a global marketplace for SMEs, in order to accelerate the use of electronic commerce between companies around the world.