Synchronous groups used an Internet Relay Chat (IRC) based system. The system allows comments to be entered and edited in a small window at the bottom of the screen before being submitted to the group. Comments submitted to the group appear in a larger window at the top of the screen. Older comments scroll off the top of the screen but can be reviewed using the page up and page down keys. The participants were given an introduction to the system prior to the first session. The system can be operated with a few simple keystroke commands and the students found the system familiar and easy to use.