February 2015 update
I gave students the option this semester of using the textbook or of using the readings I have posted links to on Moodle. Some are using the book, others are using the posts, and some are using both. As I work through the semester, I am finding the places in the syllabus and in assignment instructions which need to be changed to support not using a textbook. I am considering making the option available in the future for students to either use or not use the textbook (at least until the textbook company changes editions) as some students prefer the textbook to either reading material on line or printing it and having lots of paper. The readings are the same either way.