Altmetrics and other article-level metrics offer new opportunities to understand the impact of medical publications and, indeed, clinical trial programmes. For example, we can learn whether the publication has been viewed, shared, engaged with, or cited on different platforms. These metrics have limitations, but new tools and techniques for aggregating and summarising different metrics are making it easier for publication planners to understand the impact of their publications. Medical Writing. 2022;31(4)50-53. https://doi.org/10.56012/vjht8689