There?s been a lot of news recently about the competition between Kayak and TripAdvisor. TripAdvisor recently launched an air metasearch product, directly threatening Kayak?s core business.

In classic Steve Hafner style (and borrowing from The Art of War), Kayak is responding with a counterattack by playing up the long-in-progress relaunch of their hotel review site TravelPost, and taking more than a few pot-shots at TripAdvisor in the process.

Kayak did an overhaul of a few months ago, and will add a lot more functionality and officially relaunch it within a week.

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