I recently added the ‘Friend Wheel’ application to my Facebook profile, and I’m rather fascinated by the results:
I think there’s some issues with their ordering, but you can still clearly see three distinct groups with high within-group linkage. The three groups line up pretty nicely with people I know from high school (LMHS), people I know from my undergrad at Carnegie Mellon, and people I know from grad school at Caltech. There’s also some interesting between-group linkages — for example, I had no idea that my friend Andy from Caltech knew my friend Ashley from CMU.
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