The Bad Sees - Insane PrC's
Venomous Vats: Psionics and Lunacy
Tome of Worlds: Inside the Mind of Madness
Undead and Madness
How to Roleplay Insanity
Cults and madmen
A historical overview of mental illness
High level characters
Those who traffic overmuch with otherworldly intelligences and mind-warping theories must pay many prices.
Psionics and insanity
Who are we, as human beings, to determine what is madness?
The Bleak Cabal
Preview by Ambient, Inc. - The Mad Tailor