At start, Facebook is the network address book for U.S. College students, students must provide true information to register. Since its beginning in 2004, it quickly became a popular platform for college students to exchange information. From 2006, Facebook opens registration for all users around the world. Based on the characteristics of the real personal information, hence now Facebook becomes great tool to look for lost friends.

This is the answer of Mark Zuckerburg, Facebook founder, was repeatedly stressed that the spirit of Facebook: Facebook is not only a tool to make friend, but also give an extension of the real interpersonal relationship to the internet. Facebook’s strength lies on the ability to help users to find friend they already know in real life in the internet world.

First of all, Facebook provides search engine to find friends. When users register Facebook account, they need to provide birthday, gender and background information which may includes the location of high school, universities, research institutes or career background. Then Facebook can use this information to find persons with similar background as reference for users to add in the contact list.

Simpler way is that Facebook can search user’s email address book to find out any person who already in his contact list. This ensures that in future, if any people you know join Facebook, he will find you immediately.

Also Facebook can check your friend list, if you and other user both have same friend list, Facebook will put this user in the “You may know” list, which let you expand friends circle easily. Because these convenient tools, Facebook users can build their friend circles much faster than other social network sites and users increase the friends list easier.

In addition, Facebook offers great variety of applications and games for users. Users can add new game every day, or shared popular games with friends. When Facebook offers more interactive games, it forms a special social model, and through these activities, you can keep in touch with friends and even with someone you are not familiar.

Tracing mechanism with social games, Facebook provides pleasant time, even if you online for long time, it will not be bored.

Edited By Henry Lu