The American Association of Community Colleges' (AACC) Plus 50 Initiative (2008-2011), funded by The Atlantic Philanthropies, was created to build the capacity of community colleges nationwide to develop programming that engages the plus 50 learner. The Initiative supported a pilot group of 13 two-year institutions to develop or expand college offerings in three areas: workforce training and career development; learning and enrichment; and volunteering. It was later expanded to include affiliate colleges that were paired in learning partnerships with experienced Plus 50 colleges. AACC engaged LFA Group (LFA, "Learning for Action") to conduct the Plus 50 evaluation. LFA developed a mixed-method evaluation designed to collect both quantitative and qualitative data to assess the Initiative and support continuous improvements over the course of the three-year Initiative. Results in this report focus primarily on the 13 pilot grantees; however, the impact on affiliate colleges is discussed as well. (Contains 22 exhibits and 11 footnotes.) [This paper was prepared by the Learning for Action Group.]