Twitter as a source of journalistic work in selected online newspapers during the government crisis in May 2017

The bachelor thesis deals with an analysis of the use of information from the social networking service Twitter in the process of journalistic work. I study the employment of information from Twitter in news during the government crisis in May 2017. For the analysis, I chose three online news sites: Aktuálně.cz, iDnes.cz and iRozhlas.cz. The goal of this thesis is to find out to what extent and in which way was the information from Twitter involved in the coverage of the government crisis in the chosen news sites. Another goal is to analyse the selection of sources from Twitter. The research follows a method of quantitative content analysis, which allows us to describe an exact extent of the involvement of information from the social network in the analyzed content. The theoretical part of the bachelor thesis characterizes the network digital media and describes the processes of digital mediamorphosis and convergence, which are related to the rise of the so-called new media. The theoretical part then introduces the social network site Twitter, its establishment and principles of its functioning, with a special focus on the role of Twitter as a source of journalistic work. Besides the analysis itself, the practical part also contains an introduction of the research method, i.e. the quantitative..