Communities of Practice: The Organizational Frontier by Etienne C. Wenger and William M. Snyder. From the January –February 2000 Issue of Harvard Business Review.

Cultivating Communities of Practice: A Guide to Managing Knowledge – Seven Principles for Cultivating Communities of Practice by Etienne Wenger, Richard McDermott, and William M. Snyder. From “Working Knowledge” Harvard Business School 3/25/2002.

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How Impact Networks Work and Their Potential