What with Expedia, Travelocity, Orbitz, Priceline, Hotels.com and every airline, hotel chain and car-rental place hosting its own site, you would think that the last thing the world needs is another travel destination on the Web.

Nonetheless, veterans of several of the aforementioned online travel giants have launched yet another start-up, Kayak.com, claiming that it would be more of a travel search engine than a direct competitor to the others.

The site has been in beta since last fall and offers a few things not seen on other sites, like complete access to discount airlines like JetBlue and Southwest, and a nice way to refine results without having to go back to the beginning of the search. CEO Steve Hafner, who got out of Orbitz to paddle Kayak's course, recently tried to explain what needs his new venture could serve.

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