Things that need to be invented, part I

Doesn't it seem like all radio stations should simply have a link so that one can buy whatever song they just played?

Obvious, nu?

They should have their website constantly updating what track it was they just played. This would be nice in and of itself, right? (Some stations do this, already.)

But then the playlist should link to i-Tunes, Napster, or directly to the four major record lables, Sony-BMG, EMI, Universal and Warner and for a standard fee one could purchase the track one just heard on the radio.

Record companies would sell a lot of music on impulse buys. Radio stations could get a tiny cut of each transaction and they would have something else to show their own advertisers about listeners and their spending habits, besides specious Arbitron ratings.