Oh my goodness! I have just started using Tophatter and I LOVE IT. I can post my Etsy page and have received multiple views and purchases through this site. It is a live auction site. You have to decide what you want your lowest bid to be, but otherwise, if you find an item that those buying want, then it can go 3 times your selling price on Etsy. I have made tons of sales on it.
I also submit on Wanelo and Craftjuice. I can see views from both every day. All are free, except Tophatter when someone purchases your item. Then fees apply. But if you don't sell, no fees.
:) Good luck!