After four years of operation I've decided to gradually shut down the Cleanify service. With only a small user base and (intentionally) no business model, I'm not feeling motivated to try and maintain a decent user experience any longer. Also since Spotify is now better integrated into social networks such as Facebook, the value of a service like Cleanify is not as clear as it was back in 2009.
As of October 1, 2013 the API is disabled and it is no longer possible to create new Cleanify urls. All of the 34020 existing Cleanify urls will continue to work for at least one more year - please take the time and update your links to use the proper Spotify url if you want them to be functional beyond October 2014.
A big thanks to all who have used and promoted Cleanify during the past four years!
Best regards, Anders