摘要：PlumX is a web-based tool that provides data on the use and impact of research and scholarly products. It belongs to the small but increasingly influential community of altmetric data providers. For those unfamiliar with the term, altmetrics refers to measures of research impact based on online activity—such as saving of papers in Mendeley, downloads, and tweets—and the study and use of these measures [ 1 ]. Altmetrics also include a wide variety of scholarly products, such as articles, patents, datasets, figures, and videos. As measures, altmetrics offer evidence about how and where research is being shared and discussed, and by whom. Increasingly, researchers, funders, and universities are using these data to understand and tell fuller stories about their scientific impact and investments. In addition to being involved in these efforts, libraries and librarians are using altmetric data and research to know the online tools and spaces that researchers and the general public are using to engage with science and scholarship.
