The majority of my focus has been on my Etsy shop. However, I also have listings on other sites, and I am now beginning a project-slash-goal of sorts, in which I will move listings and alternate new listings between each site.
Another site that I have begun to add more listings to is a website called "Zibbet", a relatively new handmade, art and vintage (and supplies!) site.
Of course, I still have prints available on FineArtAmerica - you can even purchase notecards made from the images you find!
There are many more websites on which artists and artisans can sell their work. I've chosen to stick with these few, given my lack of time to devote to more. In the months to come, I hope to be report that I have a clear definition and division of the works I have on each site that I am involved with, and a steady amount of listings and promotion from each!