Credit Bernardo A. Huberman, Daniel M. Romero and Fang Wu of the Social Computing Laboratory at HP Labs conducted an in-depth study of the relationships that power Twitter. The team recently released its report, “Social networks that matter: Twitter under the microscope.” The abstract: Scholars, advertisers and political activists see massive online social networks as a representation of social interactions that can be used to study the propagation of ideas, social bond dynamics and viral marketing, among others. But the…