"During Pandora’s first year, the 90210 zip code was the area listening to Pandora the most" This was because, to make sure that listeners were in the US, they

"During Pandora’s first year, the 90210 zip code was the area listening to Pandora the most" This was because, to make sure that listeners were in the US, they required a zip code rather than geocoding IP. (I was at his get together in Tucson - AMA, I guess. :)