Social media refers to online platforms that enable users to create, share, and interact with content and each other. Popular examples include Facebook, Twitter, and Instagram, where individuals and businesses can connect, share updates, and engage with a global audience. These platforms have transformed the way we communicate, allowing for real-time sharing of information and fostering communities around shared interests. Social media also plays a significant role in marketing, as brands leverage these channels to reach potential customers and build relationships through targeted content and advertisements.