So in the data she cites, the head of the online music market represents 32% of the all plays, and the tail represents 68%. That's certainly no challenge to the Long Tail theory; indeed, it's even more tail-heavy than the data I cited in my book (probably because I used a more generous estimate of 50,000 tracks for Wal-Mart's inventory).
I remember him saying that the new data didn't really change anything and explaining why the long tail idea was still valid.
edit: This is what I was thinking of: http://www.longtail.com/the_long_tail/2008/06/excellent-hbr-...
So in the data she cites, the head of the online music market represents 32% of the all plays, and the tail represents 68%. That's certainly no challenge to the Long Tail theory; indeed, it's even more tail-heavy than the data I cited in my book (probably because I used a more generous estimate of 50,000 tracks for Wal-Mart's inventory).