If you look under "Method", there are a bunch of different methods to use that I'm told correspond to various landmark papers in the field. If you know about community detection, you'll recognize which methods correspond to which papers, but if you don't, why do you care? At least, that's our philosophy for documentation, but I'm not sure I entirely agree with that philosophy.
Some of the plots use this: http://reference.wolfram.com/mathematica/ref/CommunityGraphP...
The underlying community detection uses: http://reference.wolfram.com/mathematica/ref/FindGraphCommun...
If you look under "Method", there are a bunch of different methods to use that I'm told correspond to various landmark papers in the field. If you know about community detection, you'll recognize which methods correspond to which papers, but if you don't, why do you care? At least, that's our philosophy for documentation, but I'm not sure I entirely agree with that philosophy.