Electronic portfolios can enhance student reflection and the in- tegration of learned concepts as well as demonstrate their overall proficiency to peers, teachers, and potential employers. The authors administered pre- and post-questionnaires in several classes among diverse disciplines to gauge students' perceptions of e-portfolios and e-portfolios' effect on student learning. Results showed that students valued e-portfolios for both academic and professional development, became more comfortable with using computer technologies, and interacted frequently and positively with professors in the e-portfolio creation process. Obstacles to successful implementation disciplines are also discussed. (Contains 5 tables and 1 footnote.)