In cyberspace is like the society around us is masked behind a good-natured fighting evil is suspected to be careful around her. With everything Because it is typical of the But we can also have the screening group . It requires intelligence to analyze or consider the people we thought would be good . May someday be turned into evil , it is not . In this world nothing is certain . But we are optimistic, positive or negative , as only one coin with two sides , it's always like a person who has both the good and the evil and the Social Network is the same. It has both advantages and disadvantages.