Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.
Foursquare City Guide - Foursquare City Guide is a Free to use mobile application that will lead you to the perfect spot anytime anywhere around the world.
KAYAK - KAYAK is a travel search engine that searches hundreds of other travel sites at once. Our helpful tools & features find you the information you need to make the right decisions on flights, hotels, rental cars and vacation packages.
Sygic Maps - The world's first online maps designed for travelers
Momondo - Find cheap flights with Momondo.
Flamyngo - Create a city guide with help of your friends.