The media represent all the means through which messages are transmitted, such as television, radio, various publications such as books and newspapers, and more recently the Internet, Internet portals and social networks. Media is used daily in the 21st century, and it is undeniable that the content and messages consumed through the media influence the opinion of the public who consumes them. Media content can take different forms, which are consumed by the media audience. Media literacy is one of the factors that can prevent the influence of the media on the formation of one's opinion, and in the modern age it is extremely important to educate both children and adults about aspects of the media and the proper way of using them. Factors influencing the media on public opinion are the properties of the media content, the properties of the communicator, the properties of the medium itself, and the attention and understanding of the recipient of the media message. The paper describes the results of a web survey conducted in which media literacy and attitudes about the influence and importance of the media in the lives of respondents were examined. The respondents showed an adequate level of media literacy and assessed that the media do not have a great influence on their own lives, but that they have a great influence on the lives of others.