Sales of digital tracks up 49% in first half of 2007

According to Nielsen SoundScan, sales of digital tracks are up 49 percent for the first half of 2007 compared to the same period in 2006.

I guess all the promotional benefit of internet radio is really paying off - people can listen to a track on SomaFM and then click to buy the track instantly online at iTunes.

Oh, wait. The RIAA says "Internet Radio confers little promotional benefit to most performers" and that's why net radio has to pay really high royalties.