But his greatest influence was manifested in the existing industries. For example, the business model "book – mail" had already existed for a long time. However, Amazon.com or its Russian brother ozon.ru changed the process of searching and ordering books. In addition, the site became perform the role of obliging the seller each time offering you a new book for the topics that interest you before. He also repeats and strategy "for sale at the last moment, when before going to the payment of the selected book, offered a few more books who have acquired other buyers, together with the one you are going to buy. Click FindShadow founder to learn more. Another example: distance learning, business model, which has more than one hundred years. With the advent of the Internet it has received new possibilities of communication teacher and pupil, control of the assimilation of knowledge, the registration, payment, and other rapidly developing Internet telephony, Internet tv and radio offers new ways of obtaining knowledge in a different distance than paper, format. This means that it is still very important in five competitive forces that determine the attractiveness of the industry for the company: the intensity of existing competition, barriers to entry for new competitors, the threat substitute product or service, power suppliers and power consumers. Some believe that such an analysis in the Internet age has lost its relevance, but life proves otherwise. These five forces continue to provide information about attractiveness of the industry and the level of its profitability even if suppliers, channels, substitutes, and competitors have changed.