Citation metrics tools can be used to measure the impact of scholarly work. Established tools like Scopus, Web of Science, and Google Scholar provide citation counts and metrics like an author's h-index. Emerging altmetrics tools measure impact through social media mentions, saves, downloads, and other non-traditional sources. While still new, altmetrics provide a broader view of impact beyond citations alone. Librarians should be aware of both established and emerging citation metrics tools to help faculty evaluate research.