A social network is a platform that allows people to connect, share, and communicate with each other online. Examples of popular social networks include Facebook, Twitter, and Instagram. Users can create profiles, post updates, share photos, and interact with friends or followers, making it easy to stay in touch and share experiences. These networks also serve as a space for communities to form around shared interests, hobbies, or causes. For instance, groups dedicated to fitness, travel, or art can bring like-minded individuals together. Overall, social networks play a significant role in how we connect and communicate in today's digital world.