I remember I used to have a Launch/Launchcast account through yahoo. It was great, but yahoo did what they always do when they buy out properties, they injected a golly ton of ads, introduced a limit on skips, and made most features pay to use. The rights holders we all know and hate took them to court and raised the price on the music to a point yahoo decided to kill the service.
I wish I could get my metrics from that site and dump them into pandora or spotify, that would be awesome.