This report provides a comprehensive overview of internet marketing, also known as data-driven marketing, exploring its various functions and applications in the digital age. It delves into the core functions of internet marketing, including web advertisement, online sales channels, marketing research, and customer communication, emphasizing their role in engaging customers and driving sales. The report highlights the importance of internet marketing, emphasizing convenience, reach, cost-effectiveness, personalization, and relationship-building capabilities. It further examines the opportunities internet marketing presents within the marketing mix (product, place, price, and promotion), and its role in achieving business success through strategic planning, effective content creation, and the utilization of various online channels. The report also addresses the challenges of globalization, technological changes, managing market feedback, security concerns, and channel conflicts. Finally, it concludes by assessing the effectiveness of internet marketing in providing customers with convenience, price comparison options, and a wide selection of products, ultimately contributing to business growth and customer satisfaction.