Stephen Fitz-Gerald
Here's what I've learned from 5 years of using the internet to promote my work.The most important thing is to have a good site. This you already have, I checked it out. The next thing is to POST REGULARLY on several of the free social network sites,like facebook, flickr, Artmetal, deviatart etc.
Every time you post images of a piece on several sites ,they CROSS POLLINATE and it ups your chances of rising to the surface when someone does a Google search,which is how potential clients will find you.
Taking REALLY GOOD pictures of your work is essential. Also HOW YOU TITLE the piece is important because of the way stuff is categorized and filed on-line.So it's good to have several adjectives in front of the noun which describes your piece so that it is included in as many categories as possible in the on-line matrix.
The effort of cross posting is cumulative and takes awhile to have an effect,but after a couple of years of this regular effort you will start to come up on page one of Google searches,then other websites will contact you to ask if they can link with you.and it doesn't cost anything to link,but it helps both parties.It's good of course to link with other somewhat related businesses but ones that you don't necessarily compete with...
With the economy tanked as it is everything becomes more difficult.But the internet can work for you if you know how it works...