Israeli-based music tech startup Serendip is shutting down on September 22nd. Serendip pulled music recommendations from a users friends on Facebook and Twitter to create playlists that could then be customized. In fact, Hypebot readers were among the first to experience the social music service via beta invites we distributed in 2011. But now, Serendip is shutting down and the broke the news in an email to users on Monday: "After 3 years of amazing ups and downs, all to the sound of great music aired by all of you, we’ve realized that we can no longer sustain Serendip as...

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