From Researching Virtual Initiatives in Education
e-learning is the use of electronic digital techniques to bring about learning, either in addition to, or in part-replacement of, face-to-face instruction and interaction (tutorials, etc).
Conventionally these techniques are taken to include television and video, even when in some cases these are still analogue in nature.
The term "e-learning" seems to cause a lot of unease and there is a reaction against it now. Some theorists use the term blended learning to denote the reality that e-learning is normally (even if not always) used in conjunction with face-to-face techniques. Purists and those in contact with research and EU circles tend to try to use the term technology-enhanced learning - but the term "e-learning" still has a firm grip on many minds, including most in the benchmarking e-learning community across the world.