Social network: Group without clear boundaries or common identity.
A social network is an online service or website in which a group of people interacts with each other, and perhaps maintain interpersonal relationships. Due to the liberty that people enjoy in social networks, their boundaries aren't clear and there is no common identity. A variety of people, regardless of their condition or status, can use social networks without confirming their identity (which means that some might lie about their posted identity), and without sufficient supervision or without any strict regulation, which makes it easier for people to interact in any way they wish.
