E-Learning Systems: A Review

E-learning systems are gaining attention among academicians and students because of its time and location independence which provide learners a great flexibility of learning. Most of the e-learning systems are deployed using Internet. This paper describes various e-learning systems designed and developed by individuals, Institutions or universities to support learning process. E-learning platforms are then described. This paper also discusses various Massive Open Online Course (MOOC) platforms available on Internet and shows a comparative summary of their features.