Distance education, or distance learning, is a field of education that focuses on the pedagogy, technology, and instructional system designs that aim to deliver education to students who are not physically "on site" in a traditional classroom or campus. This book presents current research in the field of distance learning including such topics as virtual classrooms in collaborative distance learning; metacognitive knowledge and distance education; using a Web-based e-Learning system (WebELS) to support flexibility and globalisation of higher education in science and technology; and distance education initiatives for people with disabilities.