Thanks Tweeps. Love, Des Moines.

We all know that social networks are incredibly useful for connecting people separated by thousands of miles, but can they actually amplify — and improve — an existing community? For the answer, look no further than what Twitter has done for Des Moines, Iowa, in 2008. Below are five amazing examples. Let’s make a couple of distinctions before I begin. At the end of the day, these case studies are about humans and the amazing things that happen when they mash their various talents, insights and