From a drawing in 'A Life Interest', Mrs Alexander, 1888.
Source Firkin
A repeating background of thick textured paper. Actually, it turned out to look like something between a paper and fabric.
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
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
This is sort of fresh, but still feels a bit old school.
Source Martuchox
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
This is the remix of "Strawberry Pattern Background" uploaded by "GDJ". Thanks. I realigned strawberries so as to get seamless and changed the BG color.
Source Yamachem
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
A rusty grunge background for websites. Feel free to use it in your site's theme.
Source V. Hartikainen
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
A seamlessly tileable pink background texture.
Source V. Hartikainen
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim