This keynote presentation discusses research impact and its measurement in the field of library and information science (LIS). The presentation makes several key points: LIS impact takes many forms; measuring research impact is challenging due to issues like attribution of outcomes; research impact matters and is increasingly being used to measure research quality; and various strategies can be used to extend the reach of research outcomes, like employing action research approaches and targeting dissemination. The presentation also discusses themes around measuring impact found in the LIS literature and provides examples of approaches that can improve research impact in practice based on preliminary findings from the RiLIES research project.