The influence of social networks on e-business models is significant in the modern environment where digital communication prevails. The aim of this paper is to analyze how companies use social networks for marketing and how it affects their business. The theoretical background includes a review of literature that highlights social networks as key elements of marketing, and their impact on customer engagement and sales. The methodology includes the collection of secondary data from the literature on e-business models and the role of social networks. The research results show that social networks help companies to progress, enabling them to develop modern strategies in a technologically dominant environment. Various industries were analyzed to determine how they use social media and how it affects their business. The leading social networks are described separately, explaining their usefulness for e-business models and creating business strategies. The research identifies the most effective strategies in different industry sectors. The discussion highlights the importance of social networks as part of e-business models, highlighting the improvement of user engagement and increased sales. The need to adapt business models to trends in order to meet the needs and wishes of users is also highlighted. The conclusion emphasizes the importance of social networks in modern business, concluding that the integration of social networks brings numerous advantages to companies. It is important to invest in new strategies in order for companies to differentiate themselves from the competition and be unique in their operations.