Acknowledgements
The authors sincerely thank the undergraduate and graduate research assistants and advisees who made this research possible. They are Lance Ferris, Ivona Hideg, Sarah Kilpatrick, Julie Lee and Beatrice Moos. We also thank Vivian Lo for supporting library research, Matthew Lee for video production work and the students and teaching assistants of the Professional Communications classes of 2003/2004. Partial funding support was provided by a research grant to the second author under the multi-site MINE project of SSHRC, Roger Miller (Ecole Polytechnique, Montreal), Principal Investigator.