Social networks are online platforms that allow people to connect, share, and communicate with each other. 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, such as hobbies, sports, or music. Businesses use social networks for marketing and customer engagement, while individuals can find support and information on various topics. Overall, social networks play a significant role in modern communication.