A comeback for you: the popular Escheresque, now in black.
Source Patten
Here is a new seamless wood texture for using as blog or website backgrounds.
Source V. Hartikainen
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This is a seamless pattern of regular hexagon which has a honeycomb structure.
Source Yamachem
Classic vertical lines, in all its subtlety.
Source Cody L
Prismatic Snowflakes Pattern 3 No Background
Source GDJ
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
A brown metallic grid pattern layered on top of a dark fabric texture. It should look great when using as a tiled background on web pages, especially blogs.
Source V. Hartikainen
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Sort of reminds me of those old house wallpapers.
Source Tish
A dark metal plate with an embossed grid pattern and a bit of rust. Here's a dark metal plate texture for use as a tiled background on web pages.
Source V. Hartikainen
Heavily remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
Prismatic Basic Pattern 2 No Background
Source GDJ
A green background pattern with warped vertical stripes and a grunge look.
Source V. Hartikainen
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Polka Dots Mark II No Background
Source GDJ
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick