Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

	1	William W. Gaver, Technology affordances, Proceedings of the SIGCHI conference on Human factors in computing systems: Reaching through technology, p.79-84, April 27-May 02, 1991, New Orleans, Louisiana, United States  [doi>10.1145/108844.108856]
	2	Gibson, J.J. The Ecological Approach to Visual Perception. Houghton-Mifflin, Boston, MA, , 1979.
	3	McLuhan, M. The Medium is the Massage. Bantam Books, New York, 1967.
	4	Norman, D.A. The Psychology of Everyday Things. The MIT Press, Cambridge, MA, 1988.

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