This kinda thing has been visible in social media for quite some time now. For example in Adamic and Glance's “The political blogosphere and the 2004 US Electio

This kinda thing has been visible in social media for quite some time now. For example in Adamic and Glance's “The political blogosphere and the 2004 US Election” the authors study a network where blogs are connected based on hyperlinks. I made a visualization of their dataset here: http://ryancompton.net/2014/10/22/stochastic-block-model-based-edge-bundles-in-graph-tool/ http://ryancompton.net/2014/10/22/stochastic-block-model-bas...