1. Augmenting organizational memory
2. The Zephyr Help Instance
3. Erickson T. and Kellogg W. A. "Knowledge Communities: Online Environments for Supporting Knowledge Management and its Social Context." In Sharing Expertise: Beyond Knowledge Management. (eds. Ackerman M. Pipek V. and Wulf V.). MIT Press Cambridge/London 2002. Erickson T. and Kellogg W. A. "Knowledge Communities: Online Environments for Supporting Knowledge Management and its Social Context." In Sharing Expertise: Beyond Knowledge Management. (eds. Ackerman M. Pipek V. and Wulf V.). MIT Press Cambridge/London 2002.