If you are a photographer or an illustrator there are now a few sites that will happily sell your work and pass on a commission for every work sold. Such sites are known as Microstock Sites.
â€œMicrostock photography or Micro Stock Photography is an offshoot of traditional (macro) stock photography. What defines a company as a microstock photography company is that they source their images almost exclusively via the Internet, do so from a wider range of photographers than the traditional stock agencies (including a willingness to accept images from “amateurs” and hobbyists), and sell their images at a very low rate (anywhere from $.20 – $10) for a royalty-free image. – Wikipedia http://en.wikipedia.org/wiki/Microstock_photography
I use such sites a lot to sell my Illustrations. Mostly I only get around $0.30 a download but with around 250 illustrations on say www.shutterstock.com I make around $120 a month and need do nothing more. Some people have thousands of images and must be making big bucks.
I mention this as a possible way that you, an illustrator or photographer can use all those old images you have doing nothing on your compuer and make a little extra money. The income depends totally on the number of works you put on the site as well as the type of image.
They are looking for stock images that will be of use to websites and publications. So if you have photos of people at work, or reading a newspaper or answering a phone, they need these images. Signs, symbols and anything that helps to clarify an idea is of interest and should sell well.
My best sellers are the icons I make. They are perfect for web developers. For illustrations you will need a program that can save in EPS 8.0 format for vector graphics although high res JPGs also work, but do not sell as well as vector files.