Gracenote, the company that usually provides the album information when you rip a CD, launched an interesting Music Map application that shows the "popularity" of artists and albums by region and country in many parts of the world. It does this based on how often Gracenote's database is queried about particular albums or artists. Link to Flash map (Thanks, Gabriel "TuneUp" Adiv!)
David Pescovitz is Boing Boing's co-editor/managing partner. He's also a research director at Institute for the Future. On Instagram, he's @pesco.