The aim of this article is to review research in media innovation through a holistic, analytical, and concise approach. Although research in journalism innovation has experienced considerable growth in recent years, theoretical, methodological, and systematic contributions have received little and fragmented attention. Three hundred and two peer-reviewed publications, in both English and Spanish, were included in the sample. The most researched areas included diffusion theory, management, organizational culture, professional profiles, business models, genres and content, tools and technology, media labs and start-ups. Other less developed areas, such as policy, methodology, ethics, or journalism education, are also discussed. Finally, a number of proposals regarding further research on journalism innovation, considering the effect of Covid-19 on the media, are discussed.