The U.S. site isn’t fully rolled out yet, but TripAdvisor sites in the UK, Brazil, Canada, Germany, India, Ireland and Singapore already have the full treatment. Once hotel metasearch, which brings TripAdvisor higher CPC rates and conversions than non-transactional traffic, is fully in place, TripAdvisor plans to launch its first global, offline advertising campaign, starting in the U.S. this summer. Given TripAdvisor’s power and skills, the Kayak folks are definitely watching what TripAdvisor CEO Steve Kaufer yesterday referred to as TripAdvisor’s “big bet.” Get the full story at