A team at Wharton did some Long Tail analysis on the Netflix ratings data the company released for its Netflix Prize. Although I don't agree with many of the conclusions in their paper (like some other academics, they got confused over definitions of "head" and "tail" and fell into the common trap of doing percentage analysis in an absolute numbers world), the data was interesting. They kindly shared it with me before publication and incorporated some of my analysis in their paper. But for...