I've used
www.webfabrics.net
www.deltapatchwork.com
www.favoritefabrics.com
www.hancocks-paducah.com
www.batikplus.com
www.bearcreekquilting.com
www.clotilde.com
www.kayewood.com
www.nancysnotions.com
www.missouriquiltco.com
www.emeraldcityfabrics.com
www.keepsakequilting.com
http://www.labfabrics.com
I know there are others but can't remember.