Hot Topic, SCVNGR announce Deathly Hallows challenge
Hot Topic and SCVNGR have a cool promotion going on for any users of the latter service.
SCVNGR, like Foursquare, is a location-based social networking game. Once you check in you have to complete a challenge.
For this promotion, completing a challenge gets you access to special Potter-themed badges! Click here for more details, and good luck!