As one of the Internet software pieces offered for free that has been first realized, accepted and widely used, instant messaging software has gained huge public following after several years¡¯ free service. The public following is not only reflected by the huge number of users, but also by the multiple Internet service types with huge market potentials and the lucrative Internet advertising industry. As a result, while the user-based instant messaging industry is creating users¡¯ market, a multi-platform and multi-operation mode market has also been created as an extension to the instant messaging industry.