This is a pre-print version of the paper published in: International Journal of Web-Based Learning and Teaching Technologies (IJWLTT), Volume 6, Issue 4, pp. 1-18, 2011 Learning Management Systems and Learning 2.0 Alexandros Soumplis, Eleni Koulocheri, Nektarios Kostaras, Nikos Karousos, Michalis Xenos School of Science and Technology Hellenic Open University