Why have a Darkroom?  
a good place to start
Build a Darkroom  
a brief 'how-to' manual
Introduction to the Darkroom 
lots of practical information
Building a Home Darkroom 
from Photographer's Toolkit
How to Build  a Darkroom 
step by step for anyone
Welcome to my Darkroom  
for the technically able
Darkroom Necessities
a complete listing of what you may need