• 

  Tripadvisor

  World's Largest Travel Site. 200 million+ unbiased traveler reviews. Search 200+ sites to find the best hotel prices.
  http://www.tripadvisor.com

• 

  Expedia

  Plan your trip with Expedia. Buy airline tickets, read reviews & reserve a hotel. Find deals on vacations, rental cars & cruises. Great prices guaranteed!
  http://www.expedia.com

• 

  Uber

  http://www.uber.com

• 

  Rail Europe

  Rail Europe - Learn how to choose between a rail pass (eurorail/eurail) and a train ticket so you can save money on every trip. Get real time fares and sched...
  http://www.raileurope.com