"The purpose of the study was to examine the social-media-related rulings of seven European media councils over the past 10 years. In total, 250 resolutions were analysed. The report highlights the spectrum of ethical issues related to the use of social media as both a source and publishing platform of journalism. Unarguably one of the most difficult issues for the media councils has been where to draw the boundaries of their own authority in relation to social media. Thus far, European media councils have taken somewhat different approaches to what type of social media content they consider within their remit. While some councils only accept complaints about content posted on the media outlets’ official accounts, other councils also assess posts by individual journalists on their own social media accounts. Furthermore, of the councils that address content published by individual journalists, some would handle the complaint if the account was used for professional purposes, while others would process the complaint if the post was written in the capacity of a journalist. [...] (Conclusions)