Shopify — known for helping small businesses create e-commerce websites — has launched a new mobile app called Sello that joins a crowded field of peer-to-peer commerce efforts. Sello resembles Instagram and provides easy-to-use functionality for individuals and small businesses to sell products online. It is free to list items, but the Sello app collects a 3 percent fee for each transaction. Sellers simply post a product photo and description, list payment and shipping options, and specify a choice of social platforms, such as Facebook, Pinterest or Twitter. Continue reading Shopify’s New Mobile App is Like Instagram for Classified Ads