→ comment to The next wave in scholarly word processors?
What I’d like to see is more people using version tracking systems.
With these you have a discussion which can be merged easily when it gets branched. I use it for anything I do, and I could use it together with an only-windows-and-GUI user with ease, installing TortoiseHG for both and Lyx for him (LaTeX made easy – you don’t have to see the sources).
Just right click in a folder, call synchronize and pull and your work gets merged.
For publishing to the web and to PDF I’d use Emacs org-mode or Markdown with Markdown to LaTeX:
org-mode: orgmode.org
markdown: daringfireball.net/projects/markdown/
Maybe with markdownify for pages which already are HTML:
Besides: A simple Mercurial repository with URLs as document identifiers would allow forking the web :)