This document summarizes an online panel discussion about creating a successful online marketplace. It includes: - An agenda for the panel discussion on developing an engaging shopping experience for customers on an online marketplace. - Statistics showing the rapid growth of ecommerce and increasing pressures on margins, selection, and delivery from rising customer expectations and competition. - Issues in the current supply chain increasing pressure and creating opportunities to diversify supply. - Data demonstrating that marketplaces are capturing most new ecommerce growth and outperforming standalone retailers. - Insights into how increasing the number and performance of sellers on a marketplace can drive more sales.