Since Gingko is tree-based, one person can work on the overall organization, while a second is writing the main points of a particular section, and a third is taking those points and fleshing them out in a subsection.
Via Nik Peachey, Juergen Wagner, Eric Laurent
Very good app for long documents. You could work in a 3 tree level, allowing you to conect between levels, add links, pics, etc... quite user-friendly.
Need to try out this tool, looks exciting!
Now that I've discovered the wonderful Gingko App, my writing (and pre-writing) is not going to be the same again.