TravelAPI
by Takashi Sugiyama
1. AgentFactor Travel
2. BART
3. Chicago Transit Authority
4. Cleartrip
5. Destinde
6. dopplr
7. fboweb
8. FlightAware
9. FlightStats
10. FlightView
11. HotelsCombined
12. Hotwire
13. Kayak
14. King County Buses
15. Lonely Planet
16. Rezgo
17. sletoh.com
18. SmartTravelDeals
19. Superbreak
20. to.uri.st
21. Transport for London
22. TravEnjoy
23. TriMet
24. TripIt
25. Vianet
26. Yahoo Travel