8 by 8 pixels, and just what the title says.
Source pixilated
Prismatic Abstract Geometric Background 5
Source GDJ
Subtle scratches on a light gray background.
Source Andrey Ovcharov
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
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
Colour version of the original pattern.
Source Firkin
A nice looking light gray background pattern with diagonal stripes.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Geometric Tessellation Pattern 4 No Background
Source GDJ
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
Zero CC Mossy stone tileable texture, photographed and made by me. CC0
Source Sojan Janso
An alternative colour scheme for the original background.
Source Firkin
Prismatic Snowflakes Pattern No Background
Source GDJ
Some dark 45 degree angles creating a nice pattern. Huge.
Source Dark Sharp Edges
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen