London's Saatchi gallery is taking a crowd-sourcing approach to promoting art online, letting artists promote and sell their work for free from a custom site. Seems to be phenomenally successful from a traffic POV, ringing up tens of millions of daily "hits" (seems like a long time since I've heard that metric!).
Having just added Heather's work to the site, I have to say that the user interface for artists and browsers is remarkably bad. I kept getting weird errors trying to log-in to the account and got landed on blank pages when I added images. And the page elements dance all over the screen more garishly than a LowerMyBills ad as the page loads. You'd think that Saatchi would be able to find/fund resources to build him a world-class site. The art gathered there deserves a more professional environment. He'd never settle for this type of shoddy experience in his galleries!
Here's Heather's new page on Saatchi: Heather Hancock Mosaics. Judge for yourself.