This literature review examines the significant impact of social media on business and marketing strategies. It begins by establishing the importance of social media in modern marketing, highlighting its use in engaging large audiences, promoting products, and building brand image. The review explores the concept of social media marketing, emphasizing its effectiveness compared to traditional methods in terms of time and cost efficiency. It analyzes the effects of social media on business operations, focusing on how platforms like Instagram, Facebook, and LinkedIn are used to target audiences, increase sales, and enhance customer engagement. The review discusses the role of social media in customer communication, feedback collection, and competitive analysis. Additionally, it covers the challenges such as negative comments, reliance on advertisements, and data privacy issues. Overall, the literature review provides a comprehensive overview of how businesses leverage social media to achieve their marketing objectives, increase market exposure, and drive revenue growth, supported by various research studies and publications.