A social network is a theoretical construct useful in the social sciences to study relationships between individuals, groups, organizations, or even entire societies (social units, see differentiation). The term is used to describe a social structure determined by such interactions. The ties (sometimes called edges, links, or connections) in the structure are called "nodes". The nodes through which any given social unit connects represent the convergence of the various social contacts of that unit. Many kinds of relationships may form the "network" between such nodes, but interpersonal "bridges" are a defining characteristic of social networks. Read more
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