ZBrushCentral

Free Textures

Community
#1

This Photographer has added some nice free textures at the link plus some are raw files or jpeg:)
http://www.darknews.com/high-res-textures/

#2

This is a large download of wood textures
http://www.fudgegraphics.com/2009/10/9-free-hi-res-wood-panels-textures/#more-1174

#3

more textures
http://www.hongkiat.com/blog/28-high-resolution-wood-textures-for-designers/
and
http://mayang.com/textures/Wood/html/Flat%20Wood%20Textures/index.html