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.