I have tried some graph analysis using my own graph analytics framework: Gunrock (http://gunrock.github.io/gunrock/). The PageRank is pretty similar (the first three are DoctorWho, StarWars, and EVA.) My colleague and I are interested in doing more analysis on this site. We are trying to build a crawler and maybe using bipartite graph to build some kind of recommendation system. All inspired by your project here. Stay tuned :-)