Jonathan:
Welcome to the Fedora Docs Project.
Ditto on everything Paul has written. I just volunteered as lead writer for the Fedora User Guide. We are very interested in expanding it to incorporate more KDE and (time-permitting) Xfce coverage. Let me know if your are knowledgeable in those areas and interested in contributing.
I prefer using the wiki to do the bulk of the changes, with the result that the learning curve is very low to begin writing.
John Babich Volunteer, Fedora Project