Ad-Supported “Free” Music Plays On: SpiralFrog, Imeem, QTrax  —  As Apple (APPL) and Amazon (AMZN) duke it out in the MP3 price war, music publishers are still trying to figure out how to cash in on a crowd that will go to great lengths to get its music for free.

Source:   GigaOM

Author:   Adena DeMonte

Link:   http://gigaom.com/2007/09/28/ad-free-music-startups/