The aim of this paper is to review extant research on the impact of social media on knowledge management (KM) to establish the current body of knowledge and, on this basis, to suggest some promising avenues for future research. The study consists of a systematic literature review of eighteen refereed empirical articles on social media and knowledge management. In order to get access to the articles, we used different scientific databases such as Scopus and ProQuest. As keywords, we decided to use multiple keyword combinations. After having read the abstracts of the articles identified, we ended up with a final set of eighteen articles, which represented the basis for analysis. The systematic approach helped us to make sure that the majority of relevant papers would be covered. To the best of the authors’ knowledge, no systematic literature review on social media and knowledge management has previously been published or presented. The topic seems to be a promising field for systematic and intensive research and offers a variety of future research avenues.