The author gratefully acknowledges the help of the following individuals and organizations. 

• Thanks to the faculty and staff of the DePaul University Academic Technology Development (ATD) Department--especially Lorilee Sadler and Yosef Mendelsohn--for their patient help and willingness to share their knowledge. 

• To the teaching staff of the Collaboratory Project of Northwestern University--including Gary Greenberg, Bob Davis, Lee Katman, and Bonnie Thurber--for their bountiful tips and expertise.The Collaboratory Project 

 Northwestern University  Sponsored by the Ameritech Foundation.

To  and its webmaster Randy D. Ralph, custodian of a lavish warehouse of images, glyphs, icons, bullets, and other graphic aids.