Air, Hotel, Car
Links
Expedia
Major online travel planning site.
Hotwire
Enter your desired itinerary; the airline or hotel are revealed after you book.
Opodo
A UK-based site operated by 10 major European airlines.
Orbitz
Travel planning site for trips originating in the US.
Priceline
Set a price and see whether a travel company can meet it.
Travelocity
Major online travel planning site.
Travelocity - Gay Travel
Gay-focussed section of Travelocity.