Rabulias
the Incomparably Shrewd and Clever
Their GM's Miscellany line might be what they meant? I have not bought any, but most of the ones I found here look to have previews: DriveThruRPG.com - Raging Swan Press - GM's Miscellany - The Largest RPG Download Store!Anything in particular? They have a lot of stuff!
Also I hate to buy anything without being able to see a preview, but I don't see any on their site or DTrpg - but maybe I am looking in the wrong place?