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"If you're a Mac owner, the chances already know bout a cool notification software called Growl, an application that will display system messages and application alerts in a stylish ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apple/2011/11/19/how-to-enable-native-now-playing-itunes-dock-notifications-on-your-mac/>