Here's another gem from Daily Links @ elearningpost.com and Jay Cross and his colleagues at internettime.com.
The provocatively titled blog entry -- We are the Problem: We are selling Snake Oil -- and the responses it has generated over the past couple of days, is a prime example of power of 'net-based collaboration.
I know from my experience as an on-line student @ OISE/UT that on-line "knowledge building" works. It's nice to see an example in the "real world" -- very cool and power stuff. A practical example of how powerful a learning medium the net can be; notwithstanding, the prevalence of "snake oil" ;-)