EverQuest II Prima Official Game Guide (Published in 2004)
EverQuest II Mechanics (2012 PDF Document)
Desert of Flames - January 2006 Client 'Free Trial' does not include all voiceover VPK's (only DoF expansion one).
EQ2Flames (Circa 2008)
EQ2Village - Class, Items, Spawns, Zones resources
Lore Library - Tomes and Quest Dialog Resources
EQ2 Game Pressure - Old maps/quest/npc resources
"EverQuest Guide" on Wordpress - Release screenshots and gameplay details
Official EverQuest II Beta Changelog - EverQuest 2 Changelog taken from beta after NDA was lifted on players.
VPK Extraction with Python 2.x script: http://www.openrce.org/articles/full_view/16 -- WARNING: THIS DOES NOT WORK PROPERLY TO EXTRACT -- USE VPKTOOL