Wenger argues that the success of communities of practice are directly related to the organization of those communities as learning environments. The interaction of the participants relates to the perceived success of these social learning systems.
This video shows George Siemens describing connectivism in a conference setting. He describes the difference between the traditional systems of learning our students participate in where they hear and repeat content and what he terms a "meaningful" learning experience.
This is a YouTube video of George Siemens discussing his ideas about networks, connections, and social learning. Siemens suggests we should, "Emphasize connections... and not networks." If we wish to understand learning we need to understand how connections form, and why.