Used Etherpad http://bit.ly/xOXdr today in class with 50+ students for classwide brainstorming - worked brilliantly
ETUG member, Grant Potter, tweets some success with EtherPad today. It looks like a very useful and robust tool for the classroom or any type of group collaboration.
EtherPad is the only web-based word processor that allows people to work together in really real-time.
When multiple people edit the same document simultaneously, any changes are instantly reflected on everyone's screen. The result is a new and productive way to collaborate on text documents, useful for meeting notes, drafting sessions, education, team programming, and more.