As the development of high technology, people count on the computer so much, some people even stay at home all the time and use the computer to order the thing to support their lives. Making friends online is a fast and easy way for people to know others, they can chat whatever they want and don't have to make time to know each other. But such way of making friends is dangerous, people may be cheated. We can see the news that people were cheated by the online friends and lost a lot of money, even their lives. Internet is a big world, there is no way for people to know what kind of person the other people are, so don't count on the Internet so much.