We might have another good alternative option to the wiki (maybe easier and more flexible): use a github repo for all the documentation pages in makedoc format, and have external export batch script to export them in HTML, PDF or whatever format.
I would be able to write most of the reference documentation, but would probably let the dictionnary be written by the community. The githun repo would allow for everyone to contribute while being filtered by one or several managers.
Now, where is that new version of altme that uses git for file sharing and just hides all the details...
AdrianS: Github Pages uses Markdown format, they have no support for makedoc.
Gregg: the Red dictionary could be displayed in different ways, the treeview (unfolded like for clojuredocs or navigatable like in the Sensha demo) is one option, another is displaying it like REBOL's one: