近年来，随着信息技术的飞速发展，越来越多的人把迅速普及的因特网和正在兴建的信息高速公路作为继报刊、电台和电视台2后的一种新媒体。联合国新闻委员会1998年5月举行的年会正式提出第四媒体的概念，联合国秘书长安南在会议上指出，在加强传统的文字和声像传播手段的同时， In recent years, with the rapid development of information technology, more and more people regard the rapidly popularizing Internet and the information superhighway under construction as a new medium after the newspapers, radio and television stations 2. At the annual meeting of the UN News Committee held in May 1998, the concept of the fourth media was formally put forward. UN Secretary-General Annan pointed out at the conference that while strengthening the traditional means of text and audio-video transmission,