The idea of social and informal learning in the corporate learning space is fascinating. But the real challenge is how to implement this new learning culture effectively across the organization as people who calls the shot show skepticism as their main argument is how to control and manage the informal learning and how do you measure it. I work as a eLearning teamlead in an MNC where people are even reluctant to embrace the Rapid eLearning over classical Flash-based elearning.

This categorization of different types of learning is excellent . However I am a bit confused about the term self-directed learning when you write— "social media for learning requires a lot of self-directed learning, either individually or as a participant in a group/organization."
Even a formal elearning course is self-directed, isn't it?