EtherPad
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." "New: Pro accounts & unlimited number of concurrent users free! Color Wheel Edits highlighted in author's colors Quickly know who contributed what to the document. Clock Really real-time Forget emailing files back and forth: changes happen instantly for everyone. Undo Infinite Undo History Don't stress about group mistakes?—?all changes are saved on the server and can be undone at any time. Filing Global list of pads for your organization Track all your pads and sort them by authors."
