Education via the Internet, network, or standalone computer. e-learning is essentially the network-enabled transfer of skills and knowledge. e-learning refers to using electronic applications and processes to learn. e-learning applications and processes include Web-based learning, computer-based learning, virtual classrooms and digital collaboration. Content is delivered via the Internet, intranet/extranet, audio or video tape, satellite TV, and CD-ROM. [Source: Learnframe: e-Learning Management System]
E-learning was first called "Internet-Based training" then "Web-Based Training" Today you will still find these terms being used, along with variations of e-learning such as elearning, Elearning, and eLearning.