Peer assessment is an instructional strategy in which students evaluate each other's performance for the purpose of improving learning. Despite its accepted use in higher education, researchers and educators have reported concerns such as students' time on task, the impact of peer pressure on the accuracy of marking, and students' lack of ability to make critical judgments about peers' work. This study explored student perceptions of a web-­based peer assessment system. Findings conclude that web-based peer assessment can be effective in minimizing peer pressure, reducing management workload, stimulating student interactions, and enhancing student understanding of marking criteria and critical assessment skills.