The spread of the Internet and social networking has created a ’post-industrial revolution’, changing the working experience for journalists. Social media create a new culture of news making and consumption and citizen journalism is gaining ground. In this thesis, I have researched the use of social media as journalistic tools by employees of traditional news organisations in Greece. As non-representative sample of the qualitative research, I used a major broadcaster, with strong position in the radio, television and Internet industry, as well as a dominant presence in social media. The literature review covers the media landscape globally and Greece in particular, and presents the changes that technology brings and their implications for the profession of the journalist. Moreover, it presents the new roles that come as a necessity in the new era. The key findings of this case study are that Greek journalists are increasingly using social media in their job. Their basic use is as newswire for more real-time information and secondly for interaction. However, they are hesitant and have reservations about their use, as they are sceptical about the credibility of the online community. However, most of them are aware of the forthcoming change and are willing to be part of it, but they ask for training and editorial guidelines in the new working environment. Keywords: social media, Greek journalists, participatory journalism, integrated newsroom