Both Priceline and Expedia added to their market share in the agency category of top US travel websites this week, as Yahoo Travel plummeted to eighth place.
Last week's fourth placed Orbitz gained and moved into third position, while Travelocity and Hotwire also moved up.
Most popular travel websites in the US for the week ending September 17 2011:
Agency
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Destinations and Accommodation
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Airlines
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Travel search terms
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NB: Data couresy of Experian Hitwise