Dennis, indeed, good points, but it helps to understand the origin of this model. Essentially, Jane was trying to demonstrate that after a while, LMS will diminish in importance as social software comes to the fore. I tried to capture that aspect with this graphic: http://farm5.static.flickr.com/4003/4587117006_24e38e036a.jpg.

Today I finished reading John Hagels' and JSB's new book, Pull. They see the world as I do. We are going through a phase change. It may be more useful to describe it as before and after rather than evolutionary.

I suspect that "after" is going to resemble a giant hairball.

jay