Zbigniew Oniszczuk (PhD) is a researcher in media studies at the Institute of Political Sciences and Journalism at the University of Silesia (Poland). He is the author of nearly 80 articles and dissertations dealing with mass media issues, their relationship with the political system, media participation in political communication and public relations, and changes in the media systems. Dagmara Głuszek-Szafraniec (PhD) is a researcher at the Institute of Political Science and Journalism at the University of Silesia (Poland). She is the author of numerous articles on media systems in the world published in academic periodicals and co-author of publications on media images of the reality. Her areas of interests focus on changes taking place on foreign media markets and concentrate mainly on the Spanish model. Mirosława Wielopolska-Szymura (PhD) is a researcher at the Institute of Political Science and Journalism at the University of Silesia (Poland). Her scientific interests are focused on radio studies in the context of public service broadcasting and intercultural and international communication as well as in sociocultural impact of the media.