3.5none is a blacklist ruleset which started as a joke on /tg/, which stated that 3.5e was perfectly balanced provided you threw out the core rulebooks. This has resulted in the following set of rules being built by me:
3e books may be used when no 3.5 replacement was provided
No classes, races, artifacts, spells, or monsters from the following books:
The following books are completely banned:
Core Rulebook: Dungeon Master's Guide
Ghost walk
Magic of Incarnum
Forgotten Realms: Faiths and Pantheons
Tome of Battle: The Book of Nine Swords
Humans are banned no matter what rulebook they come from.
Third party sources may be allowed as per GM's discretion