Jan Hart is advocating the very idea that social networking will become the foundation for eLearning in the future. I think it will be in some instances but not always. In countries that have exams at the very core of the curriculum, this may not happen or very little of it will happen. However, in countries where the curriculum is more open ended in terms of content, social learning is definitely one of the better ways to "teach" or produce learning.
View Jan's slides here: