I haven't been a member here long so don't know if anyone has ever posted info on this.
There is a website that quilt shops can sell fabric on. It's kind of fun. Fairly new so really needs more shops to take part. You bid on things just like e-bay and get notice's if you win the bid or get outbid. All quilt shop quality fabric and most of what I have gotten has been anywhere from $4-$6 per yard plus the shipping. Most of the shops use the USPS and they really stuff the priorty mail boxes to the max. Every shop I've ordered from I got my order in 3-5 days. It will be more fun once more shops get involved but I've been happy so far.
http://www.quiltersauction.com/auction/xcAuction.asp