This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
I scanned a paper coffee cup. You know, in case you need it.
Source Atle Mo
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
An orange vertically striped background pattern. Feel free to download and use this orange background pattern, for example, on the web). It resembles a wallpaper with vertical stripes or something similar to it.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
The image depicts polka dot seamless pattern.
Source Yamachem
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks.
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
Subtle scratches on a light gray background.
Source Andrey Ovcharov
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
The image depicts an edo-era pattern called "same-komon" or "鮫小紋"which looks like a shark skin.The "same" in Japanese means shark in English.
Source Yamachem
A comeback for you: the popular Escheresque, now in black.
Source Patten
Seamless Light Background Texture.
Source V. Hartikainen