Travel reviews posted online have exploded in recent years. The number of reviews on TripAdvisor, for example, surpassed 100 million in March 2013, bolstered by a 50% increase year over year. While TripAdvisor far and away boasts the most traveler-submitted reviews, other major online travel sites have also compiled tens of millions more. Read the rest at eMarketer.
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![Traveler Review Websites By Number Of Reviews, June 2013 [TABLE] Table - Traveler Review Websites By Number Of Reviews](http://www.emarketer.com/images/chart_gifs/158001-159000/158367.gif)