TripAdvisor Invests In Vacation-Home Review Site FlipKey

TripAdvisor is in an expansive mood. In July, it acquired two small startups, VirtualTourist (user-gen travel guides) and OneTime (booking price comparison). And today it announced a majority investment in FlipKey, a guest review site for vacation home rentals. The amount of the investment was not disclosed. FlipKey launched only last March. [...]