I just finished "The Long Tail". A good point Anderson brings up is that more often than not, eBay has no idea what its users are selling. People don't use standard SKUs, etc.
This means they can't build a real recommendation engine, which is needed to deliver the mass of long tail content to users adroitly.
This means they can't build a real recommendation engine, which is needed to deliver the mass of long tail content to users adroitly.