For years now I have been happily using EtherPad based services like http://primarypad.com/ and http://sync.in/ to get participants on the training courses I deliver to work collaboratively to create and peer edit texts. Increasingly though I've been having problems with the reliability of the free services these companies provide and the lack of reliable compatibility with mobile devices.
Via Nik Peachey
This is my review with tutorial video and teaching suggestions of Quip's online word processor with a focus on encouraging peer editing.