Here's an yet another seamless note paper texture for use as a background on websites.
Source V. Hartikainen
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
Kaleidoscope Prismatic Abstract No Background
Source GDJ
The following orange background pattern resembles a honeycomb.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
The name tells you it has curves. Oh yes, it does!
Source Peter Chon
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
Classic vertical lines, in all its subtlety.
Source Cody L
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
This white background pattern has a seamless grunge style texture. Here's a white grunge style background pattern. Use it as a tiled background image on web sites or for other purposes.
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A pale orange background pattern with glossy groove stripes.
Source V. Hartikainen
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler