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"There's no shortage of apps designed to help you find, discover, and enjoy new music, but that isn't stopping a steady flow of new services to the space. This includes the likes of ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2014/06/23/whyd-iphone-lets-bookmark-music-across-web/e-222/>