The tall head strikes back: 'long tail' much smaller than previously reported

Chris Anderson's Long Tail blog: A methodology for estimating Amazon's Long Tail sales Anderson's originally-reported estimate, that the 'long tail' of books not among the 100,000 titles typically carried by a bricks-and-mortar Barnes & Noble accounts for 57% of Amazon's sales has been revised downwards. The new number is at most 36%, and perhaps as little as 20%. The 'tall head' strikes back.

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