Wikipedia
Gowalla was a location-based social network launched in 2007 and closed in 2012. Users were able to check in at "Spots" in their local vicinity, either through a dedicated mobile application or through the mobile website. Checking-in would sometimes produce virtual "items" for the user, some of which were developed to be promotional tools for the game's partners. As of November 2010 there were approximately 600,000 users.
At the start of December 2009 it was reported that Gowalla had raised $8.4 million in a round of venture capital funding led by Greylock Partners and angel investors Chris Sacca, Kevin Rose and Jason Calacanis. It was acquired by Facebook on December 2, 2011, for an undisclosed sum Gowalla, Inc. was based in Downtown Austin, Texas. On March 10, 2012, Gowalla announced it would cease operation and users would be able to download their checkins, photos and lists soon. However, this seems to have fallen through, as the site was made unavailable before these histories could be downloaded.