Tripadvisor - The Tripadvisor mobile app is available for the Android and iOS platforms. It can be used to create reviews of hotels, restaurants, and to chat with other travelers on Tripadvisor forums.
Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.
Wikivoyage - the free worldwide travel guide that anyone can edit.
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.
Triptipedia - Triptipedia is a free collaborative encyclopedia of travel tips, where everyone can browse, save and share tips for better travel!
Booking.com - Find your next stay. Search deals on hotels, homes, and much more...