You can (on windows at least) install a portable version of LyX onto a directory on your USB stick or network folder, give it to your colleagues and they just r

You can (on windows at least) install a portable version of LyX onto a directory on your USB stick or network folder, give it to your colleagues and they just run it from there. LyX supports change tracking similar to other wordprocessors so you can see who edited/added/deleted which part of the document.