Internet and the new technologies have promoted alternative models of consumption in the last years. The relation between the one who offers a product and the one who has a concrete need is changing of significant way. In this chapter, we are looking to show how it works the contributed economy, which bases in loaning, rent, buy or sell products regarding specific needs and no so much in economic profits. Of this form, the services are considered goods of exchange, and like his own name indicates, it is a model centred in the collaboration and the mutual help. At present, almost all the sectors of the economy have already contributed businesses.