Jell-O Pudding's NYC Billboard Is Powered by Twitter

Here's a cool thing—a Twitter-powered billboard from Jell-O Pudding. It's essentially an outdoor version of the Jell-O Pudding Face website we wrote about earlier, which monitors the mood of the world based on the number of smiley- and sad-face emoticons posted to Twitter. (Whenever overall smileyness dips below 50 percent, the brand gives out coupons to the randomly downcast.) The billboard, from Crispin Porter + Bogusky, went up on Thursday and sits at the corner of West Broadway and Grand in New York City.