There has been a continuous interest on assessment of e-learning systems within educational organizations as both a web-based learning system for e-learning and as a supportive tool for blended learning environments. This book presents a conceptual e-learning assessment model, HELAM (Hexagonal e-Learning Assessment Model) suggesting a multi-dimensional approach for e-learning systems evaluation via six dimensions: (1) system quality, (2) service quality, (3) information (content) quality, (4) learner perspective, (5) instructor quality, and (6) supportive issues. Findings presented in this book are valuable for both academics and practitioners of e-learning systems. The book highlights the importance of a multidimensional analytical approach for e-learning system success evaluation. The proposed model provided several implications for e-learning effectiveness evaluation.