The wisdom of online crowds has helped people make a lot of decisions, like what restaurant to try visit Yelp's amateur reviews or band to listen to go to OurStage. Marissa Evans is bringing crowdsourcing to another daily dilemma: what to wear. Last year the 26-year-old Harvard Business School graduate quit her job at a digital marketing firm and began working full-time on Go Try It On, a New York-based website that allows users to post photos of themselves on the site and get fast feedback about their outfits from the masses. "I live alone now," says Evans. "I thought there should be a way to leverage technology to get this advice quickly."