Pandora

Want a continuous radio of music to listen to during your bouts of writers' block?  Try Pandora.  Pandora takes a song, genre, or artist of your choosing and creates a radio station based upon it.  You can influence later songs by giving songs a thumbs-up or a thumbs-down.  Listening to Pandora is generally a great experience.  Just don't waste all of your writing time on it.