In the early 21st century, almost everyone takes journalism on the web for granted. However, it was not many years ago that journalism moved online and a distinct form of journalism began to develop. Ranging from online doubles of the paper editions to publications exclusively produced for the web, the evolvement of web journalism has entailed both dramatic and not-so-dramatic changes in the way that journalistic products are produced, disseminated, and received. Online journalism has usually been demarcated from traditional journalism by four traits: interactivity, immediacy, hypertextuality, and multimodality. These characteristics are generally identified by scholars as points where journalism on the web brings added value in comparison to the old print newspapers. Interactivity involves various aspects of user activity and participation in the processes of consuming, contributing to, and disseminating news afforded by the web. Immediacy refers to the nature and consequences of the faster pace of publication in web news. Hypertextuality has to do with the possibilities of linking journalistic texts to other texts, which makes the text more transparent and open.Multimodality denotes the telling of news with the use of many different modes at the same time. When studying research about these aspects of web journalism, three general observations can be made. First, researchers have approached these characteristics unevenly in terms of scope and interest. The interactive aspects of web journalism are by far the most investigated. Second, the four characteristics have been studied through the lenses of different theoretical frameworks. Third, empirical research shows that change in journalism is slow and not always as radical as many predicted when journalism on the web was in its infancy.