Artists and selling online

I have popped into Twitter and looking at all the of the artists sites there...on twitter, artists maybe around 1900...so really when you consider things...and the millions of pages on twitter..that is not that many...
One thing I have seen is the growing number of sites selling artwork...
They offer free membership and ask that the artist surrenders 10% of the sales fee to the website owner...which really is the same as what we are offering and when you consider the cost of credit card transactions at 3-6% 10% is very reasonable...
But what I want to know is it working...we have had around 50-60 people per day visiting our site and whilst there only a few artists at this stage...no sales or enquiries...however we are getting people interested in being part of our database..which is good...
One thing that we are offering is genre...we only want to promote figurative art...paintings, photography and sculptures...this sets us apart and with our website names http://wwwnakednudeartshop.com and http;//www.nakedartshop.com
then people that are looking for naked art will find Naked Art...

Would love to hear peoples comments, are you an artist and are you selling online...is it worth the hassle...does online images work to sell art...or is it only cheap art that sells online...
If you are a buyer...are you will to shell out $8000...seeing only an image online...takes some balls to do that
Look forward to hearing from you...
Thanks
This image is for sale a unframed canvas..1300 x 800mm for $450 plus postage

Brent & Shirley