I have been going into high drive the past few days marketing my recent art work. Odesk was a great recommendation someone on this site referrd me to. Other then that I've been joining and advertising my services on forums that are likley to be interested in my work. I'm at the bottom of the barrel and I want to put in as much work as possible in finding more clients. Any suggestions other then the ones mentioned above?
Are you selling digital artwork or looking for work? If you are selling digital artwork, I suggest you build a website and feature your artworks there, if you are looking for work, Odesk is good but very competitive. You may want to try other freelancer sites like freelancer.com.
Don’t know of any other sites, but odesk is pretty good and reliable. It's quite good for offering as well as looking for different services. Also, there are several different options when it comes to payment.