As can be seen from Figure \ref{275909}, most nodes in the tested networks have a very low betweenness score, indicating that there are only a few nodes through which many paths pass. This means that there is a definite bottlenecking phenomenon that is occurring in the tested networks. In essence, a few nodes control most of the flow through the network, indicating that that a few nodes can control the flow of information.
PageRank
By visually inspecting the PageRank of the various networks, it is clear to see that again, there are a few nodes that dominate the flow of the network by having a high arrival probability. This further reinforces the idea put forward by the betweenness centrality that the flow is bottlenecked by controlling, or important nodes. In addition, visual inspection showed that similar bottlenecking structures existed within all the analyzed networks, showing that flow through the networks had similar dynamics.