The Ackoff Center has posted a presentation, From Mechanistic to Social Systemic Thinking (pdf format), given by Russell Ackoff in November 1993 at the Systems Thinking in Action Conference. As usual he presents many great ideas well. And ten years later the ideas presented are still fresh and worth reading. The ideas are more familiar than they were in 1993 but are still powerful. The presentation concluded with
Russell Ackoff Biography and links to more of his papers and resources on his ideas.