Clinton,
A couple of years back, you mentioned that you were at work on a TSOY supplement, something to do with religious groups and cults in TSOY. Did that go anywhere? Or have I been out in the sun too much and you weren't working on a project like that?
Clay,
there's Yesterdays Heresies, which probably is what you mean, but it is very incomplete:
http://files.crngames.com/cc/tsoy/yesterdays_heresies.html
Also, George Shannon detailed some of what's been left out by Clinton:
http://www.smokingmirror.net/SoY/secondary_heresies.html
Thanks for the link. Some of the unfinished cults are pretty funny. I like the Elves' cult in particular. And if I'm feeling silly some time I'll invoke the goblin cult.