Source http://www.e-learningconsulting.com/what_is_elearning.html
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eLearning is the use of technology to enable people to learn anytime and anywhere. e-Learning can include training, the delivery of just-in-time information and guidance from experts.
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If you could stop time and inexpensively bring together all of the people in your organization who need to learn and the resources to teach them, you would not need eLearning. In the real world, people have jobs to do and budgets are limited. Your learning program will need the power of technology to overcome the limitations of time, distance and resources.

You know that people learn in many different ways and at different times. To support these different learning needs, you will need different e-learning delivery methods. Additionally, you will need a way to develop and manage e-learning.