Facebook Groups are online communities within the Facebook platform where users can connect based on shared interests, hobbies, or goals. These groups can be public, closed, or secret, allowing members to control who can see and join the group. Members can post updates, share content, and engage in discussions, fostering a sense of community. Groups can be created by anyone with a Facebook account and can focus on a wide range of topics, from local events to specific interests like cooking or fitness. They serve as a space for collaboration, support, and information sharing among like-minded individuals.