Dietrich Kappe has done another of those social network studies of book consumption using Amazon’s Other Customer’s also Bought..
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(The original (at least, the first one I heard about) being Valdis Krebb’s Study of polarised political book buying).
The graph isn’t so pretty as Krebb’s, but it is more interesting in that it shows a more complex picture than the rather-to-be-expected left/right political divide of American politics.
Choice of programming language is also political of course, and it’s interesting that Kappe’s study shows that related books on server-side languages break up into subnets, whilst client-side technologies like CSS and javascript form a common ground (as you’d expect really).
If you’ve written or read similar studies, I’d appreciate it if you’d link to ‘em in the comments.
