新闻是什么?当然取决于怎么理解它的属概念。社会学芝加哥学派的罗伯特·帕克开启将新闻作为一种知识型来讨论的先河，并将新闻看作是“相识的知识”。在进步主义时代的背景下，帕克将自己的新闻知识观建立在公众的日常生活互动实践中，并期待从新闻这种“相识的知识”出发，最终实现“大共同体”的重建。然而帕克对于新闻作为“相识的知识”的理解过于笼统，而且没有看到不同的媒介平台对新闻知识型的建构。新闻即使作为一种常识，也同样有着各种不同的知识型。在数字媒介的时代，平台让“地方性知识”和“社群性知识”“在手的新闻”和“上手的新闻”一同涌现在用户面前，为用户创造了前所未有的多元知识社区，也重构了用户对知识的理解和对共同体的认同。用户在越来越认同自身的趣缘社群的同时，离大共同体的认同越来越遥远。

What is news? Undoubtedly, this should be started with how to understand its genus. Robert Ezra Park from the Chicago School of Sociology is a pioneer to view news as a form of knowledge and treats it as “knowledge of acquaintance”. In the Progressive Era, Park’s view of news is based on the interactive practice of public everyday life and hoped for the reconstruction of the Great Society on the ground of this “knowledge of acquaintance”. However, Park’s understanding of news as “knowledge of acquaintance” is not detailed enough and he neglected the differences among different media platforms. News also has many kinds of knowledge forms, even common sense. In the era of digital media, platforms enable local knowledge, community knowledge news merely objectively presented and revealing itself by its own handiness to rush into the sight of users at the same time. It creates an unprecedented knowledge community of multielement and reconstructs users’ understanding of knowledge and their recognition of the community. As users identify their interest communities more and more, they are getting further away from the Great Society.