With new trends emerging every day, social media platforms are changing society as a whole. Communication through online channels has improved the function of business communication itself, bringing many benefits. Nowadays, companies and public figures cannot imagine communication without the social media platforms because it is easier to reach target group of users and create quality interactions. In many spheres - especially in organizing events - the new social phenomenon of networking has brought many opportunities for better communication, promotion and monitoring results. Public relations, playing an essential role in organizing public events, have recognized the importance and power of social media as a communication tool. The aim of this paper was to explore the role of social networks as communication tool in the example of summer event “The Courtyards” in the city of Zagreb by analyzing the content on the official Facebook and Instagram profiles. Furthermore, the aim was to explore which social networks are mostly used and for which purposes, by conducting a survey questionnaire. In addition, one of the research objectives was to explore how users perceive content on the official social media profiles of the selected event. Finally, the paper proposes ideas for improving management of social platforms of “The Courtyards” event - as well as communication itself - to achieve better results