Do you want just Paizo stuff?
If I included other stuff, I published the first five answers to my question myself! /modestydisengaged
Other than our own ZEITGEIST material, Way of the Wicked sounds like it's probably the best thing out there from other 3PPs (assuming the 'buzz in the streets' I'm picking up on is accurate).
Seems like We Be Goblins is a popular choice for the Paizo stuff. Interesting - the best stuff seems to be the non-traditional stuff.