Jeff Hayes is often mentioned in my circle of artist friends as someone who has done a very successful job of continuously improving his work and making it immediately available to interested clients on the web. He offers his paintings on e-bay as well. He is an example of the way our internet generation of painters use the net to communicate with each other and our buyers.
Jeff is a self taught painter living in the Boston Mass. area and the wonderful progression of his work can be viewed on his blog