Over the years, Facebook has grown into much more than a social network, including a place to shop. More and more brands are placing product listings on their Facebook Pages, a phenomenon, we've discussed more than once within the last week or so. WebPronews had a chat with Doron Simovitch, co-Founder, President, and CEO of comparison shopping site Sortprice , which has a Facebook application for product listings that recently surpassed a 1,000 stores.