TripIt has received $5.1 million in Series B financing from three significant investors: Sabre Holdings, O’Reilly AlphaTech Ventures and European Founders Fund. The investment will be used to expand development, marketing and support for the rapidly growing number of travelers who rely on TripIt.

TripIt is an online travel organizer and social network to help people manage their travel plans and stay in touch with fellow travelers, colleagues and family. In its first six months, TripIt has been honored at the TechCrunch40, Web2.0 Summit LaunchPad, and Under The Radar conferences, is currently a 2008 Webby Award Nominee, and has been praised by a range of media including the Associated Press, CNN, Economist, FOX, New York Times, Sunday Times (UK), and Wall Street Journal.

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