Network Recording Player (NRP) is a player/converter of WebEx network-based presentations stored in .arf format. It can convert .arf files to .wmv or .swf also.
TurningPoint is software to integrate questions into power point presentations so that participants can answer the questions using a small RF transmitter, and the answers can be instantly recorded and processed in different ways. It has many polling functions with which I am not very familiar, but it can be a useful teaching tool. The software is free, but you purchase the hardware it works with.
Wink is a Tutorial and Presentation creation software, primarily aimed at creating tutorials on how to use software (like a tutor for MS-Word/Excel etc). Using Wink you can capture screenshots, add explanations boxes, buttons, titles etc and generate a highly effective tutorial for your users.