E-learning, meaning electronic learning, is a teaching model based on use of technology with the fundamental characteristic of not requiring the student’s physical presence. In other words, it consists of learning through studying material in computer environments and on the internet or other electronic media, where the teacher, if any, remains at a distance.1 Classically, there are two types of e-learning: distance learning and computer-assisted learn-ing. Distance learning uses information technology to take learning to different locations. Computer-assisted learning, also known as computer-based training, uses computers as the sole teaching tool, through different forms of media, without the presence of a teacher or tutor, even at a dist...