You can sell it here, as long as you abide by the rules, which aren't too terribly stringent. I think this is a great place to sell, you get a lot of exposure, and there is no fee to sell.
Another option would be to contact a local quilt shop, to put fliers up there. There is a quilt shop in my area that had a huge "stash busters" sale last year. Basically, you rented a table from them, and sold your fabrics. They did all the advertising for it. There were about 15 different people last year that sold their stuff. (there was no room for more) I think they had a bigger turn-out than they expected, as there was barely room to turn around with all the shoppers.
Anyways! That would be another option for you. You could talk to a LQS about that to see of they would be willing to help you do something like that.
Best of luck!