Irish Republican Army (IRA) and Euskadi Ta Askatasuna (ETA) are two of the oldest European terrorist organizations that have been active for more than a half century. They have been using both violence and politics as means to achieve independence of their respective regions: ETA for the independence of Basque from Spain and IRA for the secession of the Northern Ireland from the UK and the unification with the Republic of Ireland. In the recent years, the internet has become one of the most dynamic platforms on which many terrorist organizations are pursuing their propaganda war. This paper will analyse the presence of IRA and ETA on social media, focusing predominately on Youtube. In this paper the content analysis method was used to analyse the audiovisual communication of IRA and ETA on Youtube (80 most viewed videos) in the period from March 1 to June 1 2016. The study found that none of the organizations pose a direct threat to security or are directly involved in expanding their propaganda on Youtube.