Art - Future Galleries

…,without need to pay the membership before I sell anything?
I’m sorta popular as an artist and do sell my works fine through galleries, but would like to do more business online in future. The reason is, galleries accept only larger works and I don’t always find the good language with their owners.
Payed membership is not for me as my current savings cover bills and every-day stuff. It goes fine living like this, but every new expense would ruin this plan and I do need some extra money in the next few months.
So if there’s any place that would let me sell my works over them for a provision of sell work (I really don’t care if they rip me off, as long as I earn at least a bit) and nothing up front, please share with me…
I appreciate any help and thanks in advance
http://www.deviantart.com/

you can register there for free.