http://store.quilting-warehouse.com/fabric-misc.html
http://favoritefabrics.homestead.com..._the_bolt.html
http://www.thefind.com/crafts/info-quilt-fabric-bolt
http://www.fashionfabricsclub.com/c/...-Blenders-Bolt - great prices on blenders, between $55 & $60 for a 15 yard bolt!

Here are a few. Put "quilt fabric by the bolt" in your search box and you will find many places that sell fabric that way.

Try Marshalldrygoods.com or quiltingwarehouse.com

ebay also has several opportunities

I have purchased Kona fabric by the bolt from Hobby Lobby. I use a 40% off coupon.

I buy muslin for backings at JoAnn's. You can use a coupon because it is "a single cut of fabric" Saves me a lot.

Actually, I'd think any place that sells fabric would sell a bolt. Sometimes you can find whole bolts on the shelf---------specially things like backings and solids.

IF ALL ELSE FAILS------buy whatever is left on a pretty full bolt. Hopefully with a coupon.

I haven't have a chance to read all five pages, so apologies if I am repeating a recommendation, but you can get Moda's Bella Solids at fatquartershop.com and if you buy 15yds (a bolt) you get a discount, I think its 20% off. I think the thousandsofbolts.com website also sells Bella at a discount if you purchase 15yds.

I like a moda white which I have purchased at Wooden Bridge in Kutztown, PA. I am not affiliated in any way with their business, just purchase quite abit of fabric from them. Not sure if they sell by a bolt.

If you can order full bolts through your LQS you will probably have a better idea of the quality than if you order through Joanne. I don't have a shop but for me this has been true.

I would be very happy to order full bolts of fabric for anyone who is interested, and give you a very nice discount! Since I'm in the business, I have access to at least 40 different manufacturers, so basically, if it's still in print, I can get it for you. PM me if you'd like to talk about it.