June 2007
Thoughtslinger: Simultaneous Group Editing | thoughtslinger.com
With Thoughtslinger, you can share every keystroke with your co-workers, colleagues, classmates, or family members. Everyone sees everyone else's changes at Internet speed.
November 2006
Obby | 0x539.de
by 3 others"a free collaborative editor supporting multiple documents in one session and a multi-user chat. It runs on Microsoft Windows, Mac OS X, Linux and other Unix-like platforms."
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