The Web is an essential tool for travelers, but as booking engines and trip forums evolve and multiply, you have to know where to look - and whom to trust. Travel + Leisure has assembled an online guide of the top travel Web sites to jargon decoders.

Among the picks you'll find the big guys like SideStep, Kayak and Farecast, some niche sites like to preview airline seat maps, or to preview menues at approximately 25,000 restaurants across eight cities, and some obscure resources like, a seemingly silly, but surprisingly useful resource reviewing 12,000 public bathrooms in 120 countries.

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