今天，新闻信息产业界正在经历巨变，我们必须认识到这些变化对大众传媒的影响有多大，无论是通讯社，还是电视台或印刷媒体及广播，都笼罩在其影响之下。
The world of news and information industry is undergoing huge changes, so we need to realize how they influence our mass media, including news agencies, TV channels and radio broadcasting.
互联网正让新闻业回归到大众传媒出现前口口相传的时代。
The Internet is taking the news industry back to the conversational culture of the era before mass media.
第二部分分别对大众传媒和新闻信源进行了学理阐释，为后面的论述奠定理论基础。
The second part gives academic interpretations of mass media and news sources respectively, which lays a theoretical foundation for the latter explications.
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