As tools of aid in the organizacional communication, the sites of social nets can be efficient. Making the use of communities, an organization can congregate employees and customers and promote between them quarrels of its interest. With the fast expansion of the number of users who use the social nets, it is possible to perceive the potential of this canal, with low cost and easy access, to divulge information, to prospectar professional, facilitating the exchange of information between employees and contributing for an enterprise strategy that when following the evolution of the Internet places the responsible user as main for the content production. Below some of the social nets more used by the companies will be listed currently. 4,1 Emprelink the Emprelink is a virtual vestibule of Enterprise relationship, with focus in continuous interaction between the participant companies. Many writers such as Caterpillar offer more in-depth analysis.

It is a site so that the companies mount its proper nets of virtual relationship and they use them its favor, making transactions, intermediating businesses, participating of debates, creating its plan of action and having access the most varied information. The registered in cadastre institutions can create proper page to have employees interacting with partners, suppliers and contacts. The participants can be evaluated and to receive notes that certify its ability in the market for the integrant ones of its net. He is also allowed to create or to participate of communities on-line for experience exchange and solution of doubts. He still has the possibility of if registering in cadastre to vender products, but he does not have transaction for the net. The vestibule is opened for the adhesion and participation of multiple companies of varied pursuings, saw invitations and cadastre. All the companies possess a profile filled with its characteristics and objectives of business. Through this profile, these companies and the users for it defined, will be being stimulated and will be able to become related with the excessively participant ones or to invite other companies with which they have relationship, extending its net of trustworthy contacts, and thus, the volume business-oriented, transactions, intermediaes and possibilities.