The debates about national nuclear strategies adopted recently are accompanied by nuclear discourses shaping via the Internet. The deliberation about nuclear energy includes the construction and maintenance of nuclear power plants, storage and transportation of nuclear waste. The Internet web pages, new Internet media and social networks provide a space for the unrepresented actors in political decision making processes to voice their opinion and to influence agenda setting. In case of nuclear energy cyber space is occupied by many actors and widely used by NGOs since it has become the easiest way to reach the audience and to express their opinion. This study focuses on the NGOs and their addresses to citizens in the virtual space. Calls to sign electronic petitions and to join protests and movements at the organizational web pages and at the social networks (such as facebook), creating and promoting groups in these networks, writing blogs about their activities are of particular importance for this study because through these channels the discourses are created or supported. Although civic engagement in the political debates by means of the Internet has been acknowledged, the specific roles of NGOs in this process remains unclear. The assumption that NGOs frame the discussion in certain directions and promote certain agenda appears to be least analyzed. This study aims to increase the knowledge about the NGOs roles in formation of nuclear discourses in the countries around the Baltic Sea region with the special regard to the role of cyber space. An understanding of how NGOs communicate with citizens through electronic recourses and what discourses they create, reproduce or follow in the addresses will be the result of this study.