The NISE Network Professional Impacts Summative Evaluation is a longitudinal examination of individual professionals over the final three years of NISE Net funding. This investigation is based on the NISE Network goals for professionals and explores how involvement with NISE Net impacts an individual professional’s sense of community, learning about nano, and use of nano educational products and practices. This evaluation primarily included professional partners who were: (1) Informal Science Educators (ISE): Professionals from science museums and children’s museums implementing informal