1. Skiplagged
  2. The Savvy Backpacker
  3. Nomadic Matt
  4. Trip Advisor
  5. Kayak
  6. Student Universe
  7. Scott's Cheap Flights
  8. Clark Howard
  9. Babbel
  10. WWOOF
  11. Couchsurfing
  12. Eurail.com
  13. Globetrottergirls.com