Wallhaven - Your source for the best high quality wallpapers on the Net!
Magdeleine - Magdeleine is a stock photos website offering thousands of royalty-free, high-quality photos for personal and commercial projects.
Picky Wallpapers - Picky Wallpapers is a good website that has the selection of HD quality wallpapers only.
PixLoger - PixLoger is a stock photos website that offers high-quality stock images, vectors, and videos without any watermark.
InterfaceLIFT - High-resolution widescreen wallpapers, desktop icons, and themes for Mac OS X, Microsoft Windows...
Openverse - Openverse is an Openly Licensed Images and Audio database and a growing community of photographers, illustrators, and musicians who share their work under a Creative Commons license.