Pain in older adults is a prevalent problem that affects quality of life and challenges nurses, particularly those caring for older adults living in long term care settings. Despite the national priority of pain management, insufficient knowledge of nurses about geriatric pain is a documented barrier to effective geriatric pain management in all long term care settings. To address this knowledge gap, a website (GeriatricPain.org) was developed by the National Geriatric Pain Collaborative with a grant from the MayDay Fund to provide a single site for evidenced-based, easy-to-use, downloadable resources on pain management. This paper describes the development of the most recent addition to the website, a set of evidence-based core geriatric pain management competencies and a geriatric pain knowledge assessment, and discusses their potential uses in improving pain care for older adults.