i don't know much about Living Greyhawk, other than it was Organized Play for 3.x.
is the material 1pp? 2pp? 3pp?
if it is 1pp/2pp, any idea if there is a list of all the unique mechanics found in them? most of the mechanics i browsed through was linked from the original source probably so they didn't need that source to run it?
ex. CORS4-02 has a new template, called the Ice-Touched.
ex. CORS4-02 changed the spellcasting advancement of the True Necromancer
ex. PAL1-09 has the Fang of Iuz, a weapon i don't remember seeing anywhere else