This book provides an insight into the latest technological advancements in the fast emerging domain of E-learning. With the resources provided by communication technologies, E-learning has been adopted by many universities and also by various training centers and schools. This book provides a systematic compilation of various topics related to the subject and emphasizes on the importance of E-learning. It reflects the progress of E-learning, with discussion about tools, techniques, improvements and potentials for long-distance learning. The book is dedicated to methodologies and tools employed for E-learning, keeping in mind collaborative methodologies and specific environments. It also provides an analysis on E-learning, highlighting researches about E-learning features and assessment of different methodologies. Lastly, it discusses recent advancements in E-learning, stressing on topics like knowledge enhancement in virtual environments, novel schemes for architectures in tutorial systems and presenting various case studies.