This mixed-method study focuses on the impact of using electronic portfolios (e-portfolios) in a graduate capstone course as a tool for increasing students' critical thinking and self-directed learning. The primary results indicate that the e-portfolio, as both a tool and a process, shows great potential. This study also reveals the capacity of the e-portfolio simultaneously to impact teacher and administrator leadership. Data were collected from 38 master's degree students in a graduate education leadership program. Both students and faculty engaged in the study acknowledged the transformative opportunities embedded in the e-portfolio vehicle and process. These opportunities provided lenses through which to reflect on participants' own professional development and accomplishments in new ways. (Contains 1 figure.)