Another Bookface Installment
DCC RPG Reference Sheets + awesome cover by Rev. Dak, from People Them With Monsters.
People Them With Monsters' houserules for DCC RPG: Outland Player's Reference Booklet. This one needs a cool cover. Gorgonmilk, get on it STAT!
Another set of houserules, this time for Swords & Wizardry. Runes & Radiations [Edited], by Roberto Pacini. Originally found on this thread at the ODD74 forums.
Dragons of the North, by Paul Elliot, another houserules document, this time for Basic D&D. Originally found in this post on Dragonsfoot.org.