If you're a freelance illustrator looking for good ways to promote your work, HIA or Hire An Illustrator is one of the best ways to go. They have reasonable rates, flexible ways of paying, good promotion, and quick service. Of all the places I've marketed my work, this one is my favorite so far. (and after sinking over $1,000 into one last year that I didn't take full advantage of...that says a lot.,)
Check it out. I just rejoined yesterday and my profile is up as a newbie.