I'd like to know how their collections are sorted. I think the hard problem in all this is, given a vast data set, find the parameters that give the optimal org

I'd like to know how their collections are sorted. I think the hard problem in all this is, given a vast data set, find the parameters that give the optimal organizational scheme. But all the pretty transitions are a nice touch :) http://en.wikipedia.org/wiki/Cluster_analysis http://en.wikipedia.org/wiki/Cluster_analysis