The Grant Morrison Interview Archive, complete with copies of or links to all the interviews I can find.  Much of this material was cribbed from the fine fellows at the Barbelith message board over the years and I would urge you to check out their own, now sadly defunct, interview archive here.
All material remains copyright of its author and is represented here purely in the interest of gathering all this material in one place.  Any questions, omissions and corrections, please contact me here.