Finally, through using the internet, people can meet a lot of people; thus, they can expand their relationship. Along with the development of the internet, there are a lot of social networks that appeared such as facebook or yahoo blog. In these pages, each members can easy make friend with others from any where in the world; so, they can easy talking and sharing their ideas of all the fields that they want. In this way, people have the new ways to expand their relationship to all people in the world.