From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Retro Circles Background 7 No Black
Source GDJ
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
You know I love paper patterns. Here is one from Stephen. Say thank you!
Source Stephen Gilbert
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
A pattern drawn in Paint.net and vectorized in Inkscape.
Source Firkin
This texture looks like old leather. It should look great as a background on web pages.
Source V. Hartikainen
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Nicely executed tiling for an interesting pattern.
Source Ignasi Àvila Padró
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
A repeating background of beige paper with vintage look. Repeats to infinity, as usual.
Source V. Hartikainen
The following repeating website background is colored in a blue gray color and resembles a concrete wall or something similar to it.
Source V. Hartikainen
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
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 drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin