• Online Travel. Online travel agents such as Expedia and Travelocity offer customers the opportunity to conveniently book travel at discount prices.
However, they make money only when visitors go to their Web sites and book travel. Kayak is a newer online travel agency that applies the Google business model of collecting money on a per-click basis.
Kayak’s marketing emphasis is on building a better search engine by offering more alternatives, flexibility, and airlines.