Recently I find shopping search engines like shipzilla,nextag etc have been developing really fast. I wonder anyone have been using them to promote your business?
I tried it when i first started my ecommerce business. My budget wasnt great so i didn't really get to play around with it to see what works and what doesn't. If you can get it under $0.25 a click i think it would be good. I'm going to try it again soon.