Picking from a zillion channels isn't just a problem for couch potatoes. It's also a problem for companies puzzled over the best place to market their products. That's where Marketsmith comes in. Founded in 1999, the company uses data to give its customers a 360-degree view of their marketing efforts, whether they are unfolding in print, on television, in social media, through direct marketing or via some other channel. The company recently rolled out a product called Retail Crowdsourcing, which allows clients to better gauge the in-store experience of their customers.