BookingBuddy.com
Search Orbitz, Expedia, Travelocity, Priceline and the airlines' own websites all from this one-stop travel center.

SeatGuru.com
Which airplane seats have extra legroom? Where is the quietest seat on the airplane? Will you be able to use your laptop comfortably? Answer these questions by checking the specific plane layouts for 29 domestic and international airlines.

BiddingFortravel.com
Research winning and losing Priceline bids on these message boards, which are organized by destination. Site users also offer advice on how to bid.

TripAdvisor.com and HotelScoop.com
Read unbiased hotel reviews posted by travelers at these sites.