Social Network Analysis, as an analytic method, has inarguable applicability to the field of intelligence and is progressively reshaping the analytic landscape in terms of how analysts understand networks. For example, analysts currently use SNA to identify key people in an organization or social network, develop a strategic agent network, identify new agents and simulate information flows through a network.The most obvious use of SNA is its ability to identify key actors and entities within a network. Centrality measures within a network are means for measuring a node’s relative importance within the network.  It is well-accepted that “the ability to measure centrality in social networks has been a particularly useful development in social network analysis.” What is more interesting, however, is the number of centrality measures that social network analysts use to reveal different things about how key actors interact within a network.
Via Bonnie Hohhof