Gowalla / Courier-Journal
Location-based social network Gowalla and the Louisville Courier-Journal are partnering for this year's Kentucky Derby festivities with special check-in "stamps" at a dozen locations around Louisville.

The Courier-Journal designed two trips around town, the Lousiville Tour and the Louisville Bar Crawl. Users of the Gowalla mobile app check in at each location to receive a digital stamp for their profile. In addition, Gowalla has created event-related stamps, including one for the annual fireworks show which is viewed by more than 500,000 spectators.