Spotify - 2010 Retrospective - Top 100
Interesting comparison of listening habits in Spotify across the 7 markets.
Interesting since this is as honest as it can be. A: This is actual listening, not based on purchases, and therefore an album that is loved weighs more than one which was a regretted purchase. B: This is unlimited, uncurated, unpressured: there are no limits to what you can listen to in Spotify, so nobody is restricted by radio or CD prices.