An Online Social Network is a digital platform that allows users to create profiles, share content, and connect with others. These networks enable individuals to communicate, share experiences, and build relationships with friends, family, and even strangers who share similar interests. Popular examples include Facebook, Twitter, and Instagram. Users can post updates, photos, and videos, as well as comment on and like others' content. Online social networks often include features like messaging, groups, and events, making it easier for people to engage and interact in a virtual environment.