GDL Guidebook : Help please !

Hi, I have a personal project to write a guidebook for Project Management.

I'd like to publish it under the GNU Free Documentation License.

Has anyone already had an experience of this kind of thing - pitfalls to 
avoid, distribution, communication ?

I've done a few Google searches, but I'm not finding anything that seems 
useful. Outside of GNU software handbooks, there doesn't seem to be a 
lot of other literature published with this license... Any links would 
be useful (I already found and read the fsf GDL pages).

Thanks in advance,

Mark


P.S. I hope you can see me through the spam...