It's not easy, sometimes, to find the RIGHT crafting supply at the RIGHT price. My first stop now is on Etsy, doing a search under Supplies; tags & titles for items (i.e. beads, yarn, etc.) where you will find hundreds, if not thousands of items. I like to check out any specials they may have (i.e. SNS - Saturday Night Specials) listed in the Forums under Promotions. Usually some great bargains there!!
Here are some other sites I like to visit as well:
Create For Less - Wholesaler of sewing, scrapbooking, quilting, decorative painting, floral and garden, and other general crafting and hobby supplies. Also offers online shopping and craft advice.
Norden Crafts, Inc. - Supplier to the needlecraft industry.
eBottles - Offers a selection of bottle, jars, and closures for various crafts.
Duncan Crafts - Hobby ceramics and craft paint and glue manufacturer.
Dai Jewels - Supplies semi-precious and precious gemstone beads.
Hats By Leko - Supplier of millinery supplies such as: hats, trims and flowers.
Bead Corp - Distributor of imported and domestic beads, charms, findings, and tools.
All Star - Eyelets, conches, settings, nailheads, acrylic jewels, sequins, and caviar beads.
Several of these do require registration with your business licensing, so be prepared with your documentation when entering the sites. I'll add more from my mega-list as time goes on.
Marge in Reno