CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
The original enhanced with one of Inkscapes's filters.
Source Firkin
Some more diagonal lines and noise, because you know you want it.
Source Atle Mo
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin
Same classic 45-degree pattern, dark version.
Source Luke McDonald
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia
To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks.
A free background image with a seamless texture of cardboard. This texture of cardboard looks quite realistic, especially when is actually tiled.
Source V. Hartikainen
A free seamless texture of reptile skin colored in a dark brown color. As always, you may use it as a repeated background image in your web design works, or for any other purposes.
Source V. Hartikainen
Prismatic Groovy Concentric Background 2 No Black
Source GDJ
Colour version of the original pattern.
Source Firkin
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Background formed from the original with an emboss effect.
Source Firkin
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
Oh yes, it happened! A pattern in full color.
Source Atle Mo