In response to Canada's pressing need for effective evidence-based policy, services, and practices specific to seniors, national leaders representing all concerned stakeholders designed and implemented a National Consensus Process to promote spread, exchange, choice, and uptake of research evidence on social and health issues associated with an aging population. This article presents the innovative methods and evaluation of this three-year project, illuminating for all constituencies the challenges and opportunities associated with promoting seniors' independence through collaborative knowledge transfer efforts. A total of 198 organizations and 65 individuals were surveyed at baseline, throughout the intervention, immediately post-intervention, and one year post-intervention. Knowledge from 783 studies was spread to 63,387 people, 90 per cent of whom reported knowledge exchange. Over 50 per cent of stakeholders reported using the research evidence, although processes for facilitating knowledge choice did not achieve consensus. Significant knowledge uptake occurred in two of the four research theme areas.