Fabric Manufacturers Links - wholesale sources - lots of online pictures of the latest fabrics
Did you know that many of the fabric manufacturers will sell directly to small businesses? (Crafters please note: this includes you, too!) They generally have initial minimum orders, but subsequent orders can be as little as a single bolt of fabric at a time. It's worth investigating... each company has its own policies, so contact them individually for details. It is usually faster (and sometimes less expensive) to order directly from the manufacturer.
* - best links (lots of images, updated regularly)
Fabric Wholesalers/Distributors - buy it by the bolt!
Most distributors also have a minimum order, and require you to provide them with a sales tax vendor number.They carry a range of products by many manufacturers, so you can pick and choose your own combinations.