gtrot is a city discovery site that helps users find great things to do, powered by their friends. Users can add a city to see the best places, deals, and events in that destination - instantly personalized for the user based on recommendations from Facebook, Foursquare, and Twitter friends. Users can save, purchase and share the things they like. Message Facebook friends who live in a city or have been there before. Friends can up or down suggest things to do and leave commets to make plans.