You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Inspired by a pattern found in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
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
Remixed from a drawing in 'Line and form", Walter Crane, 1914.
Source Firkin
A seamless stone-like background for blogs or any other type of websites.
Source V. Hartikainen
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
A dark metallic background with a pattern of stamped dots. Here's a dark "metallic" background pattern for you.
Source V. Hartikainen
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A nice and simple white rotated tile pattern.
Source Another One
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Remixed from a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
More in the paper realm, this time with fibers.
Source Jorge Fuentes
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
Honestly, who does not like a little pipe and mustache?
Source Luca Errico
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Remixed from a drawing in 'Canadian forest industries July-December', 1915
Source Firkin