E-business, or electronic business, refers to the use of the internet and digital technologies to conduct business activities. This includes buying and selling products, providing services, and managing customer relationships online. E-business encompasses various models, such as B2B (business-to-business) and B2C (business-to-consumer), allowing companies to reach a wider audience and streamline operations. In addition to online sales, e-business also involves activities like online marketing, supply chain management, and electronic data interchange. By leveraging digital tools, businesses can improve efficiency, reduce costs, and enhance customer experiences, making e-business a vital component of modern commerce.