Facebook is a popular social media platform that allows users to connect with friends and family, share content, and engage in various online communities. Founded by Mark Zuckerberg in 2004, it has grown to become one of the largest social networks in the world, with billions of active users. The platform offers features such as news feeds, groups, and messaging, enabling users to communicate and share experiences easily. Facebook also plays a significant role in digital marketing, allowing businesses to reach their target audiences through advertisements and promotions.