The first part of this paper emphasizes the importance of the processes of informatization and globalization that according to Manel Castells play a key role in the creation of a new wave of social movements. The central part of the paper is an analysis of the Catalan movement for independence, where the historical background, in which the Catalonian nation was formed, is briefly highlighted to understand the role of language and culture, that make up an important part of the Catalan identity, more clearly. Furthermore, the paper is focused on the analysis of the Catalan independence movement through the activity of three civil societies. Their activity was further amplified after the failed referendum on October 1, 2017. The main communication of these organizations is being carried out through their online websites and multiple profiles on social networks. Online communication enabled a more rapid flow of information and thus they managed to carry out mass demonstrations throughout the Catalan territory. Their online sites are clearly organized not only for public protests but also for the invitation to various music and literary manifestations to showcase the strength of the Catalan language and culture in the best light. Texts on online sites advocate the complete autonomy of Catalonia and are mostly directed against the actions of the Spanish government, which forbade them to hold of a referendum on independence. Their goal is to show the magnitude of the Catalan Republic through peaceful demonstrations and cultural propaganda. They hope that their public action will lead to the final settlement of the diplomatic relations with Spain, which will enable the creation of the independent Republic Catalan.