Wallhaven - Your source for the best high quality wallpapers on the Net!
Wallcat - Enjoy a new, beautiful wallpaper, every day.
The Paper Wall - The Paper Wall has made its way into the list of wallpapers offering websites for many reasons.
Splashify - Beautiful desktop wallpapers for Mac and Windows
Picky Wallpapers - Picky Wallpapers is a good website that has the selection of HD quality wallpapers only.
Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.