Nowadays, the Internet has become very popular around the world and has changed people's lives both in a bad and good way. It helps us communicate with anyone in any country, bring us many forms of communication. Information is brought home to home, just a click and you can get anything you like. Some people started their business and made money here. Although their positive effects are undeniable, it also has many negative effects. It causes internet addiction disorder for people who use the Internet too much. Some people use the Internet to make illegal things such as steal information, hack websites. People in recent years are using the Internet more and more, they often use their free time for Facebook, Twitter but not for their real-life friends and their families. In addition, the Internet has many advantages if people work with them for good purposes and in limited time.