Buying Copics
Oozak
Carpe Deim

Digi Stamps
Digital-Ink Co.
DigiStamp Boutique
Digi Stamp Characters (Heather Ellis)
Mo's Digital Pencil Shop
Pink Petticoat
Sew Many Cards
Tiddly Inks

Fibers
Lion Brand Yarns

Grosgrain and Organdy Ribbons
JKM Ribbon 
PJ's Ribbons and More
Really Reasonable Ribbon

Miscellaneous
ATG 714 adhesive applicator
Clear Bags  
For ones like Stampin' Up's clear envelopes look for B54S.
For 6&1/4" x 6&1/4" bags look for B66. 
For 5&11/16" x 5&9/16" look for B5X5M.
Copic Cubbie
Eyelet Cases
Gingerwood
Learn2Stamp
Marco's Paper
Mono Adhesive Super Deal
Polymer Clay Encyclopedia
Rubber Road Adventures
Soc's Blocks
Splitcoaststampers
Versa Log (card sayings galore!)
Wolff Shears (look for #s 626 & 626-7)

Templates
Donovan's Card Templates
Mirkwood Templates

Papers
Basic Grey (paper and more)
Core'dinations
Cosmo Cricket
Crate Paper
DCWV (Die Cuts With a View)
Eclectic Paperie
K&Company
PaperTrey Ink (Their Stamper's Select White is great paper!)

Stamp Storage
Storage Units, Ink
Zip Cabs

Stampin' Up! Paper Name Equivalents
US White: Beckett Expression - Radiance
Naturals Ivory & Naturals White: Quest Cover Ivory, White
Confetti White: Fox River Confetti Cover - Kaleidoscope 
or Wausau Celebration Cover - Fiesta White

Stamps
Flourishes
Hero Arts
House Mouse
Our Daily Bread Designs
Purple Onion Designs
Stampin' Up!
Taylored Expressions