Whew! That sounds like it would be hard to organize.
Luckily it wasn't. The classes responded to my students' work using Office 2000's Web Discussion feature. They did this by looking at our web pages in their Internet Explorer browsers. Then they left comments and corrections in the form of online sticky notes--attached to discussion boxes.
We're talking about real time collaboration, Mr. Millennium. You see, when one student added a comment, one of my students could immediately see the comment and reply to it.