Social media marketing (SMM) utilizes platforms like Facebook, Instagram, and Twitter to promote products, build brand awareness, and engage with customers through a mix of paid advertising and organic content strategies. SMM is characterized by interactivity, targeted messaging, real-time communication, content creation, and cost-effectiveness, with organic marketing, paid advertising, and influencer partnerships as its main types. This approach fosters relationships between brands and audiences while offering various targeting options based on user demographics and behaviors.