At Social Media Explorer, we love great stories about what brands are doing in social media. Last week, I got a call from our good friend Audie at Realtor.com. Audie is one of the most forward thinking marketers in social media and mobile that I’ve met in a really long time, so I always answer on the first ring! He told me about an awesome contest that Realtor.com is running that is blowing up on the social web and I thought it was a great story to share with you. I’m hoping it will spark some ideas for how your brand can use contesting.