The cloud is probably the hottest topic in music right now. Amazon has had their share of problems, Google launched their service to not so rave reviews and Apple is expected to announce their service in early June. But just how much of your music do you actually listen to? I know I have a HUGE library, but only listen to a small fraction of it. Music.Withme.com recently ran some analysis on their anonymous user data and discovered that, on average, 81% of a user’s library has never been played in iTunes.