I discovered Google Moderator from a number of blogs that I subscribe to, however until today I had not looked into it. It does not provide any new functionality that we can't get through other apps and services, but being a google fan I think I will use it in both my faculty meetings and classroom learning.
Essentially Google Moderator allows you to collect ideas and responses which members of the class or meeting can vote on. I think this will be great for brainstorming and for the brave teacher - feedback on teacher performance. Once I play a little more and use it in one of the settings I will report back in more detail.