Matt Gross, The New York Times Frugal Traveler columnist, had a closer look at travel search engines Mobissimo, Vayama, Sidestep, Kayak.com, ITAsoftware.com, Dohop, cFares.com, and Microsoft's new travel search engine Bing, when researching fares for his upcoming trip to from New York to Seattle.

While his winners are Dohop and Bing, he is going to stick with Kayak as his first choice, supplement it with cFares and Dohop and follow the advice of an acquaintance who