If you are interested in contributing to phpgw-docs:

hello all,
I am in the process of writing some extensive documentation for 
PhpGroupWare.  For the time being, I am concentrating on 0.9.16 until 
head is stable enough.  At that point, docs will be update/continued for 
0.9.18.  If you would like to contribute (writing, proofreading, etc.), 
please make contact via this list.  I will get working copies published 
for the general public as soon as they are a little farther along; for 
the time being i have pdfs available for download.  Please let me know 
if you are interested and I will send you the links (just have to keep 
the site off of the lists.)

thank-you,
Neil Light (lightneo)