The Enabling Technologies -- A Typology of Learning Object Repositories -- Adaptive Hypermedia -- Ontologies and Semantic Web for E-Learning -- Design and Case Studies on Mobile and Wireless Technologies in Education -- Ambient Intelligence and Ubiquitous Computing -- Designing Contextualized Learning -- Virtual and Augmented Reality -- Learning Design: Concepts -- Competence Models in Technology-Enhanced Competence-Based Learning -- Learner Modelling Through Analyzing Cognitive Skills and Learning Styles -- Turning Potentials into Reality: Achieving Sustainable Quality in E-Learning Through Quality Competence -- Integration of Learning and Working: Convergent Processes and Systems -- The E-Pedagogy -- Bridging the Gap Between Face-to-Face and Cyber Interaction in Holistic Blended Learning Environments -- Complex Domain Learning -- Communities of Practice -- Business Models for the Sustainable Implementation of E-Learning at Universities -- The Role of Competence Assessment in the Different Stages of Competence Development -- The Organisational Perspective -- The Future of E-Learning in Schools -- An Executable Model for Virtual Campus Environments -- Corporate Universities -- Lessons from Africa -- The African Virtual University.