９０年代，世界进人信息时代，美国提出了建设信息高速公路的计划并付之实施。继广播、电视、报纸之后，被称为第四种媒体的互联网发展迅速、席卷全球，已成为发达国家的主导和支柱产业．据预测，到２０００年底，全球互联网上网人数将达到３亿，而与其相关公司的股票将会太升 In the 1990s, as the world entered the information age, the United States put forward and put into effect the plan for building an information superhighway. Following the broadcast, television and newspaper, the Internet, which is called the fourth media, has developed rapidly and swept the world and has become the leading and pillar industry in the developed countries. It is predicted that by the end of 2000, the global Internet population will reach 300 million, while the shares of the companies with them will be too much