How TripAdvisor changed travel

The world’s biggest travel site has turned the industry upside down – but now it is struggling to deal with the same kinds of problems that are vexing other tech giants like Facebook, Google and Twitter. By Linda KinstlerShould one be so unlucky as to find oneself, as I did, lying awake in bed in the early hours of the morning in a hostel in La Paz, Bolivia, listening anxiously to the sound of someone trying to force their way into one’s room, one could do worse than to throw a