Hey, has an Ecology of the Gnoll article ever been published? If so, where?
Gnolls are factoring large in some adventures I'm writing and I need some guidelines from what has been been published already. If it doesn't exist, I'll have to write one.
I think the Races of the Wild book has a section on gnolls but I think it mainly deals with the new concept of neutral gnolls. Also The Book of Humanoids might have some info in it.
There's a book called "Monster" published by AEG that has a good section on Gnolls and many other humanoid monsters. I used it to run a campaign built around a Gnoll/Elf war. my players loved it.