The scene of intense competitiveness which comes passing the companies of the entire world, reflected of the fast process of technological development of products and processes ally to the integration of the world-wide markets, come causing deep modifications in the systems of selling. It fits to stand out the advantages exist, therefore the markets are finite and the competition is a dynamic process. The companies must be known the agressive competitors are constantly searching forms to surpass its disadvantages and to discover new advantages. The creation of these, such as the net marketing, depend on the capacity of creating barriers to the imitation and extending the existing advantages. Of this way, the cycle of the competitive advantage is supported. This is the main approach of the work, illustrated with the case of the company Forever Living Products.