Automotive
AuctionDirectUSA (Automotive Retailer, Western NY, Raleigh, NC and Jacksonville, FL) http://twitter.com/AuctionDirect
broombroom http://twitter.com/broombroom_live
SmartWash http://twitter.com/Smart_Wash

Babies & Parenting
BabiesOnline.com http://twitter.com/Babiesonline
Babyspot.com http://twitter.com/babyspotCEO
bfmwear.com http://twitter.com/bfmwear
Graco Chilren’s Products: Road Ahead Campaign http://twitter.com/gracoroadahead 
Baby Tips from the March of Dimes http://twitter.com/babytips
Kevin Burke / Light Iris and Lucid Marketing http://twitter.com/KB33
Lindsay Lebresco / Social Media Manager, Graco Children’s Products http://twitter.com/lindsaylebresco
SproutSoup http://www.twitter.com/sproutsoup
TwinsTalk http://twitter.com/ParentingAuthor
theWAHMmagazine http://twitter.com/thewahmmagazine

 

Brewing
21st Amendment http://twitter.com/21stAmendment
BridgePort Breweryhttp://twitter.com/bridgeportbrew
Dogfish Head http://twitter.com/dogfishbeer
Flying Dog Ales http://twitter.com/flyingdog
Magic Hat http://twitter.com/magichat
Molson (By Tonia Hammer, Social Media and Communications Assistant) http://twitter.com/toniahammer
Open Source Beer http://twitter.com/opensourcebeer
Shmaltz Brewing http://twitter.com/ShmaltzBrewingW

 

Clothing & Apparel
Black Pearl Creations http://twitter.com/BlackPearlCreat
Buffalo T-Shirts http://www.twitter.com/BuffaloTshirts
Darling Shoes http://twitter.com/darlingshoes
GiftGirl http://www.twitter.com/giftgirl
Objets d'Envy http://twitter.com/objets
The Wardrobe Coach http://twitter.com/wardrobecoach

Consumer Feedback Sites & Resources
PlanetFeedback http://twitter.com/planetfeedback
 

Consumer Products
Method Home Products http://twitter.com/methodtweet
RESCUE! Pest Control Products http://twitter.com/rescue
Seventh Generation http://twitter.com/seventhgen
Vornado http://twitter.com/vornado

 

Digital Music Retailers
Musicane http://twitter.com/musicane

Electronics

Retrevo / Consumer Electronics Web site http://twitter.com/retrevo

 

Mack Camera & Video Service http://twitter.com/mackcamera
 

Food & Specialty Products
The Black and White Cookie Company http://twitter.com/bwcookiecompany
CrimsonCup http://twitter.com/crimsoncup
Dewmocracy http://twitter.com/Dewmocracy
Elanas Pantry http://twitter.com/elanaspantry
Greenling.com http://twitter.com/greenling_com
M&Ms http://twitter.com/msgreen
The Organic Dish: http://twitter.com/theorganicdish
Pangaea Organica http://twitter.com/PangaeaOrganica
Philadelphia Cream Cheese http://twitter.com/lovemyphilly
popchips http://twitter.com/popchips
Popeyes Chicken http://twitter.com/PopeyesChicken
QinoOneVodka http://twitter.com/QinoOneVodka
Starbucks http://twitter.com/Starbucks
Templeton Rye http://twitter.com/templetonrye
Tyson Foods http://twitter.com/TysonFoods
Vinquire Wine Search http://twitter.com/vinquire
Whole Foods http://twitter.com/wholefoods
zSweet Sugar Substitute http://twitter.com/brianazsweet

Gifts/Flowers
teleflora http://www.twitter.com/teleflora
 

Handcrafted Goods
Back Porch Soap Company http://twitter.com/BackPorchSoap
DaharaDreaming http://twitter.com/Jen_Sylvia
Nita Joy Craft Design / Personalised Greeting cards and gifts http://twitter.com/nitajoy

 

Health Care / Fitness

Insurance
Esurance http://www.twitter.com/esurance
 

Restaurants
Carls Jr. http://twitter.com/carlsjr
The Cheesecake Factory http://twitter.com/cheesecake
Hardees http://twitter.com/hardees
Patsy's Restaurant http://twitter.com/patsysnyc

 

Retailers - Apparel 

Collar Free  http://www.twitter.com/collarfree
Pacific Sunwear http://twitter.com/pacsun
Sweet Boutique http://www.twitter.com/sweetbtq

 

Retailers - National
Apple: http://twitter.com/appleinc (Questionable)
Build A Bear http://twitter.com/buildabear
Build A Sign http://twitter.com/buildasign
Dell (In depth)
Home Depot (USA) http://twitter.com/thehomedepot
Home Depot (Canada) http://twitter.com/homedepotcanada
Motorola http://www.twitter.com/motodeals

Research In Motion (Blackberry) http://twitter.com/BlackBerry
Timbuk2 Bags http://twitter.com/timbuk2
Whole Foods http://twitter.com/wholefoods
Wine Enthusiast http://twitter.com/WineEnthusiast

Retailers - Local
Bramble Berry Soapmaking Supplies http://twitter.com/brambleberry
EasyAutoSales http://twitter.com/easyautosales
KangarooBoo.com http://twitter.com/KangarooBoo
Mystery Bookstore (LA, CA) http://twitter.com/mysterybooks
Paw Luxury http://twitter.com/PawLuxury
Schumacher Tile & Stone (Meridian, ID) http://twitter.com/schumacherts
SierraSnowboard (Sacramento, CA) http://twitter.com/Sierrasnowboard
Tweetscout: Interactive Furniture Finders (NY, NY) http://twitter.com/tweetscout
Va Va Voom, LLC (Boise, ID & West Wendover,NV) http://twitter.com/vavavoomllc

Yipit, Deep local search company focused on Manhattan (NY, NY) http://twitter.com/yipit

Retailers - Music and Movies
Hoodlums Music http://twitter.com/hoodlums

Retailers - Online
Amazon Twitter Bookfinder http://www.twitter.com/amazon
Amazon.com Deals: http://twitter.com/amazondeals
The Black and White Cookie Company http://twitter.com/bwcookiecompany
BooJeeBeads.com http://www.twitter.com/boojeebeads
Buffalo T-Shirts http://www.twitter.com/BuffaloTshirts
Buy.com http://twitter.com/Buy_com (Questionable)
Church Hill Classics http://twitter.com/diplomaframe
DaharaDreaming http://twitter.com/Jen_Sylvia
Eco-Pup http://www.twitter.com/ecopup_fashion
FitFuel http://twitter.com/fitfuel
folica http://twitter.com/folica
Geeks.com http://Twitter.com/computergeeks
GlobalGolf.com http://twitter.com/globalgolf
Israeli Wine Direct http://twitter.com/israeliwine
Little Shop of Beauty (Retailer of bath and beauty products) http://twitter.com/lsb
Lydias Uniforms http://twitter.com/lydiasuniforms
Motorola http://twitter.com/motodeals
Objets d'Envy http://twitter.com/objets
Princess Time Boutique http://twitter.com/princesstimetoy
Scrapless Press http://twitter.com/scraplesspress
Shoe Smitten http://twitter.com/ShoeSmitten
ShopLeisaMarie.com http://twitter.com/leisamarie
Skimbaco http://twitter.com/skimbaco
SproutSoup http://www.twitter.com/sproutsoup
Southern Soapers Soapmaking Supplies  http://twitter.com/southernsoapers
StoryTimeFelts.com http://twitter.com/storytimefelts
Sweet Boutique http://www.twitter.com/sweetbtq
Webtogs http://twitter.com/Webtogs
WOOT http://twitter.com/woot
WOOTBlabber http://twitter.com/wootblabber
Zappos http://twitter.com/zappos
 

Shopping
Alex's Coupons http://twitter.com/tmartini
Bargainista.ca twitter.com/bargainista
Buzzillions.com http://twitter.com/Buzzillions

Skincare
Artistry Cosmetics http://twitter.com/ArtistryBeauty
Isadora Nepal http://www.twitter.com/isadora_nepal
MISSION Product http://twitter.com/charlieengle

Broken Heart Dolls http://www.twitter.com/brokenheartdoll