Selling digital art?
Photoshop Art by DRG
Photoshop as some of you might know is photo manipulation software that comes with a nice array of features. I have been using Photoshop to make art and have recently broadened my horizons venturing into contemporary and abstractness. There are many picture sites that enable you to accumulate royalties or plainly sell your pictures. Aside of pictures though there is patterns, digital art, desktop backgrounds and so much more that you can do to earn royalties that's does not pertain to taking pictures.
There are many companies out there that you can make paintings or patterns and they can use it for commercial use or personal alike. Some ideal companies looking to buy your digital art and pictures are puzzle companies, post card companies, T-shirt companies, posters, magnets, mouse pads, wrapped canvases, etc... Look online for sites that fit your niche. There are many companies/websites that sell merchandise that you can sell your prints to as well. If you draw then you can scan your art and make it a print.
My top 3 sites to sell/make royalties online are
Below are samples from some series I have for digital art titled Digiworks. Here's are some examples of possible art you can make using a photo manipulation program like Photoshop or Gimp.