Social media are often regarded as a set of new communication practices which are likely, if deployed effectively, to make public sector organisations more responsive to the various stakeholders with whom they interact. In this context, responsiveness is usually approached as an administrative function of establishing additional channels of information and responding faster to citizen queries. Notwithstanding the importance of these objectives, this study aims to reconceptualise the relationship between social media and government responsiveness. Drawing on current literature and the case of the Food Standards Agency in the UK, the study identifies new dimensions of social media responsiveness. The findings of this study can provide useful insights both for researchers in the area and those in the process of developing social media strategies in government.