Shifting Polarities is a project by Caroline Langill which documents the production of electronic and new media works by Canadian artists between 1970 and 1990.
This publication features nearly twenty extensive interviews with some of the most important artists of that period, including Max Dean, Vera Frenkel, David Rokeby, Michael Snow, Nell Tenhaaf, Norman White, and many others:
http://www.fondation-langlois.org/html/e/page.php?Lstsrv=200901&NumPage=1949