In cyberspace is like the Society around us. It has advantages and disadvantages. Everybody easily accessible, Users of the internet can link with a friend and also includes a friend's friend hundreds .
The first advantage is that to exchange information and knowledge in what interests together, social network’s small corpus of knowledge because we can propose and comment exchange knowledge or questions to the people who know the answer can help answer, Cost savings of communicating with one another quick and easy ,used as a medium for advertising. public relations, help create jobs and income to the users. Social network’s for users who want to find friends to talk play , Build a good relationships From friend to friend.