Less than 0.75% market share separates Orbitz, Travelocity and CheapOAir near the top of the list of most popular travel websites in the US.
The trio did not change position - fifth, fourth and third respectively - in December last year in the agency category from the previous month but did as a group all manage to lose some market share, as did Priceline in second spot.
Market leader Expedia gained just 0.25% over the same period.
Most popular travel websites in the US for December 2012:
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Destinations and Accommodation
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Travel search terms
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NB: Data couresy of Experian Hitwise