There is no leave system in the school letter network. Hubei University Information Platform, referred to as School Information Network for short, was established by Wuhan Unicom and Wuhan Lianchuang on June 20 10, which integrates short messages, making friends, trading, forums and activities. Since its establishment more than two years ago, the registered users have exceeded 400,000, and it has developed into a leading and influential campus social networking site in Hubei Province.