The analysts absolutely study the influence in the parts and vice versa, the effect produced by the selective action of the individuals in the network; from the structure to the relation and the individual, from the behavior to the attitude. Since these analyses have been said are realised either in complete networks, where the bows are the specific relations in a defined population, or in personal networks (also known like self-centred networks, although they are not exactly comparable), where they study " communities personales". The distinction between complete total networks/and self-centred personal networks/depends much more on the capacity of the analyst to collect the data and the information. That is to say, for groups such as companies, schools or societies with membreca, the analyst hopes to have complete information envelope that is in the network, being all the participant potential egos and alteri. Self-centred the personal studies/are lead generally when the identities or egos are known, but not his alteri. These studies allow the egos to contribute to information on the identity of his alteri and there is no the expectation of which the different egos or sets from alteri are tie with each one of the others the social networks also have been used to examine how the organizations interact with others, characterizing the multiple informal connections that the executives tie to each other, as well as the associations and connections between the employees of different organizations.

For example, the power within the organizations, often comes more from the degree in which an individual within a network is in center of many relations, that of its real job. The social networks also play a key role in the hiring, the commercial success and in labor performance. The networks are forms in which the companies compile information, they discourage the competition, and collusion in the fixation of prices or policies Is possible to indicate as it says the Country to it, that 75.8% of the women internauts visited social networks in May 2010 against 69.7% of the men, according to the world-wide study of comScore.