Gowalla on Monday confirmed it was recently acquired by Facebook. “About two months ago, my co-founder Scott and I attended F8,” Gowalla co-founder and CEO Josh Williams wrote on the company blog Monday. “We were blown away by Facebook’s new developments. A few weeks later Facebook called, and it became clear that the way for our team to have the biggest impact was to work together. So we’re excited to announce that we’ll be making the journey to California to join Facebook.” Gowalla will begin to “wind down” its services in January but will allow users to export their passport and pin data, stamp collections and photos. Williams said Facebook is not acquiring Gowalla’s user data. Neither Facebook nor Gowalla discussed the terms of the acquisition.