deviantART is an online art community for artists and art lovers to interact in a variety of ways, ranging from the submission of art to conversations on a number of topics. In its purest form, deviantART is a means for expressing yourself in a variety of ways.
It is a huge collection of pictures, wallpapers and all other graphical related resources created by a large community. deviantART accounts are free, as such you will not to have to pay for them.
At the time this article was written 52,414,979 submissions were hosted at deviantART.