Motorists turn to carpool sites as gas prices rise
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Robert Gilliland, foreground, of Lakeland, Fla., poses for a photo with fellow carpoolers Mike Rogers, left, and Brian McKenzie, Thursday morning, Aug. 7, 2008 in Seffner, Fla. Thousands of commuters like Gilliland have also turned to the Internet to arrange shared rides as average gas prices hover around $4 a gallon. (AP Photo/Chris O'Meara)
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