According to Kotler (2000), they can send e-mails, change experiences, buy products and have access notice and information on art and businesses. And-marketing has at least five great advantages: the first one of them is that as much the small companies how much the great ones can pay. Moreover, it does not have real limit of the space advertising executive, compared with half printed matters and of radiotransmisso. Another advantage is the rapidity of the access the information in comparison with the post office and the fax. The site can, still, any person to have access, in any place of the world and at any time. Finally, the purchase can be made with rapidity and privacy (KOTLER, 2000). e) Attendance to the Kotler customer (2000, P.
188) focuses that ' ' full attendance to the customer, therefore, involves express expectations for it during the proper process and requires extreme flexibility, creativity and capacity of adaptao' '. When desmembrar service of satisfaction to the customer, perceives that the author prefers to approach that the attendance to the customer is defined by the supplier, not for the customer, while the satisfaction of the customer always must be defined by the customer. Currently, the companies are recognizing as it is important the allegiance, the satisfaction and the retention of customers in the search of the growth of the profits. This item is concluded detaching some challenges to be loosers for the companies. One, is to attract customers for the quality of given services e, at the same time, to produce with profit. Another challenge is in relation to the leadership of the attendance to the customer, who is the recognition of its requirements and the agreement of that the differentiation by means of an excellent one service can prevent the competition for price. 4 SATISFACTION AND FIDELIZAO OF CUSTOMERS the companies, currently, are searching the high satisfaction of the customers, therefore when satisfied they can move of supplier to it appears the one best one offers.