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Popular Internet instant messaging services include the Windows Live Messenger, AOL Instant Messenger, skype, Yahoo! Messenger,. NET Messenger Service, Jabber, ICQ and QQ and so on. Many of these services are derived from the history of the idea of a more long-standing agreement online chat - IRC (Internet Relay Chat)
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Facebook is a social networking service site. It was February 4, 2004 on-line.
July 2007, according to the data, Facebook in all university students to serve as the main business site, has the largest number of users: 34 million active users
From September 2006 to September 2007, the U.S. site in the site's ranking rose from No. 60 to No. 7. At the same time, Facebook is the number one photo-sharing site, every day 8.5 million photos uploaded.
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Living with facebook, msn, icq of software such as the rise of online friends have become the daily lives of the young people do online. They will get to know online friends through the web platform. In addition to young people outside, not a small adult and middle-aged people will get to know these sites through friends of the opposite sex.