Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
A white version of the very popular linen pattern.
Source Ant Ekşiler
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
Prismatic Groovy Concentric Background 5
Source GDJ
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
The image is a seamless pattern of a fishnet.
Source Yamachem
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
A seamless pattern with a unit cell drawn as a bitmap in Paint.net and vectorized in Vector Magic.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Colourful background achieved with gradient fills.
Source Firkin
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
Kaleidoscope Prismatic Abstract No Background
Source GDJ
Inspired by a drawing in 'Poems', James Smith, 1881.
Source Firkin
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin