ConcertChat is a wonderful whiteboard/chat tool for discussing math software--and many other things--as we saw when it was used during the Virtual Tool Fest in June. Then on July 25 Martin Wessner led a discussion and demonstration of ConcertChat for a Math Tools activity.
At that link there are a bunch of messages after a screenshot. Many of the first 200 messages have to do with questions about using the program. After message 207 or so, the theme gradually shifts to discussing what the program is good for and why. The ConcertChat folks are very interested in feedback on this program, currently just being developed. Please provide them with your suggestions and comments on this discussion group.