youngsteve writes "With Amazon launching its DRM free music service and Virgin closing their service it would appear that selling music with limitations is becoming a losing proposition. However a number of companies have done the next logical thing and started giving away music supported by advertising revenues. imeem.com has been running a 'youtube for music' style site for the last couple of years and recently 'went legit' when they signed deals with Warner Brothers and Sony/BMG the music is high quality, on demand and user supplied which makes it feel a lot like the original Napster. Spiralfrog goes beyond browser based streaming and provides downloads of DRM protected windows media files (it's restricted to Internet Explorer users in North America) which allow you to load them onto some mp3 players but you're not allowed to burn them to CD. A third ad supported service — QTrax has yet to do much beyond press releases. So is there a market that will accept this restricted content because it's available for free, or is it a halfway step between p2p and paid downloads that has no place in the market."