The rise of graphs in marketing is creating a rise in demand for social network analysis. CMOs are looking deeper into their customer/enterprise social graphs and interest graphs to understand their key features, predict their evolution, and to identify key influencers, among other things. A key activity in network analysis is measuring the centrality of a node (vertex) within a graph (e.g. how influential a person is within a social network or measuring influence). In many cases, visualization of the social network plays an important part in this analysis. Read More: http://beeha.us/blog/measuring-influence-in-social-graphs/