I was teaching the ASTD Essentials Workshop Series last week. The person helping produce the class put up this slick digital counter every time we went on breaks (the counter counted backwards from 15 minutes when we went on breaks, and 60 minutes when we broke for lunch).
I asked her if the counter was part of the WebEx software ASTD uses for the virtual training. It turns out the counter is a utility you can download for free called BigTime. I've since downloaded it and begun using it in my own virtual classes. If you'd like to check it out for yourself, click here.