This section is designed to provide detailed information about "E-Commerce Business Models and Revenue Streams." Our increasingly digital world has also shifted commercial life to the electronic environment. The banking sector's rapid adaptation to digitalization has fueled the growth of the e-commerce ecosystem. Furthermore, business models such as B2B, B2C, and C2C, as well as various hybrid approaches, are introduced, explaining the unique structure and market role of each model. The revenue streams section addresses methods such as subscription, freemium, direct sales, advertising, and affiliate marketing. The role of multi-sided platforms and marketplace dynamics in increasing user engagement and platform value is also highlighted. Consequently, it is emphasized that understanding the diverse business models and revenue strategies of businesses can help them explore different initiatives in e-commerce.