As businesses strive to implement innovative web-based initiatives, they increasingly will have to pay attention to e-commerce business models. What exactly is a business model, how does it differ from a revenue model, and why is it so important? Raffi Amit and Christoph Zott answer these questions and more in a new paper called "Value Drivers of E-Commerce Business Models." They also develop a framework to analyze how effectively e-commerce business models help create value.