Looked at from a distance, the Top 1000 online retailers in North America had a terrific year in 2017. Their online sales collectively increased 18.5% and e-commerce accounted for 49% of retail industry growth. It would be easy to conclude from this data that online retailers are prospering and everyone else, particularly merchants that operate bricks-and-mortar stores, are in trouble. But the reality is more complex. In this session, Don Davis, Internet Retailer editor at large, will drill into the increasingly top-heavy nature of the retailers in online commerce in the US, and the reckoning many merchants, including those that sell primarily online, are facing as they must move beyond growth to prove their worth as sustainable, profitable retail enterprises.