Between 1990 and 1998, the W.K. Kellogg Foundation funded 31 projects focused on leadership development in college-age young adults. This summary report presents an overview of the results from an external retrospective evaluation of approximately 60 percent of the funded projects, primarily those based in higher education institutions. It begins by describing the evaluation methodology, followed by a description of the evaluation outcomes from four components: (1) archival review, survey, interviews, and site visits; (2) grantee evaluation results; (3) short-term impact evaluation (the Penn State Erie Evaluation Project); and (4) long-term impact evaluation (the UCLA Higher Education Research Institute Analysis). The report then discusses the hallmarks of exemplary projects, grouped into four categories: context, philosophy, sustainability, and common practices. Examples of exemplary projects are also included. (EV)