The purpose of this study is (1) to examine Australian university students' awareness of the benefits of Web 2.0 technologies and (2) to investigate the factors that influence students to adopt Web 2.0 technologies to supplement in-class learning, using the theoretical foundations of both Theory of Planned Behaviour (TPB) and Decomposed Theory of Planned Behaviour (DTPB). Findings indicated that most students in this study's sample were aware of the benefits of Web 2.0 technologies to supplement in-class instructions. The findings also indicated that students' attitude, subjective norms, and perceived behavioural control were strong determinants of their intention to use Web 2.0 technologies.