Formed by distorting a JPG from PublicDomainPictures
Source Firkin
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
This light yellow background pattern consists of an irregular pattern of spots. Here's a light background pattern with yellowish tint.
Source V. Hartikainen
A free green background pattern with a pattern of rhombuses on a seamless texture. Feel free to use it as a tiled background image on your web site.
Source V. Hartikainen
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A dark pattern made out of 3×3 circles and a 1px shadow. This works well as a carbon texture or background.
Source Atle Mo
Background pattern made in "Grunge-Like" style. Available in both SVG and JPG formats. Edit to your needs then click the download button.
Source V. Hartikainen
A new take on the black linen pattern. Softer this time.
Source Atle Mo
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
Prismatic Groovy Concentric Background 2
Source GDJ
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Adapted from an image that was uploaded to Pixabay by Anerma.
Source Firkin
A pattern drawn in Paint.net and vectorized in Inkscape.
Source Firkin