See the double special issue of Interacting With Computers vol.8,
nos. 2,3 (1996)
"Video Mediated Communication" (1997)
Kathleen Finn, Abi Sellen and Sylvia Wilbur (eds.) (Erlbaum).
It is part of the Computers, Cognition and Work series published by
Lawrence Erlbaum Associates, and contains 25 chapters covering the
foundations of VMC, results of evaluation work, of current design issues
and issues for the future.