RichGreen said:
An article by Wolfgang Baur (?) on "Dark Zakhara" or similar (horror-tinged Al-Qadim)
Second that. I believe it was titled Dark Arabia.
A great way to tie the Complete Necromancer Guide together with standard AQ.
I also nominate:
Most of the other AQ articles.
Paths of Power (Path Magic) by Baur/Kuntz (still using it with 2E to flesh out MUs)
+ a letter from a later mag with 2 more bard paths.
The Ecology of the Ghoul by Wolfgang Baur (Doresain recently resurfaced in Libris Mortis!)
Dark Sun character Kits
Completing the complete Bard (2 nice Bard kits)
the one with the fighter assassin kit (also northman, and horsenomad?)
the Lost Orientals (2E oriental kits)
Of course the old Deities & Demigods of Greyhawk by Gygax
Suel deities by Leomund
the newer 2e Faith & Avatars style Greyhawk deities
Roger Moore's article on the Jermlaine and other Suelspawn
all the Greyhawk Grimoires
of course all the LGJ !!!
the lost seldarine
I also liked some of the articles on the old alignment debate, esp "Get your priorities straight", which introduced superstitions and principles according to AL.