# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2010-05-13 06:10:19 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/13898154131) Google-Backed SCVNGR Takes On Foursquare, Looks To Boost Fun With ‘Challenges’ http://goo.gl/MhZr