Those of us involved in e-learning development or training should heed the opinions of Arnold Kling in this article. He labels the technologies that are losers, winners, and provide the magic bullet that will transform education. The money quote:
The attempt to achieve large scale in college courses is misguided. Instead of trying to come up with a way to extend the same course to tens of thousands of students, educators should be asking the opposite question: How would I teach if I only had one student? Educators with just one student in their class would not teach by lecturing.
Worth a few minutes of your time to read.