Many Americans don't realize that the data that fuels online maps, information about flights, and even real estate prices is available online thanks to a 2008 government project, according to a new Pew study. "People may say 'it's great I can find out where the bus is,' but they may not put it together that the government was behind making the information available," John Horrigan, a senior researcher at the Pew Research Center, told USA Today.