Actors/Actresses
Ashton Kutcher – @aplusk
Brent Spiner – @BrentSpiner
Ellen DeGeneres (stand-up comedienne, television hostess and actress) – @TheEllenShow
Greg Grunberg – @greggrunberg
Jimmy Fallon – @jimmyfallon
LeVar Burton – @levarburton
Oprah Winfrey (actress, producer, literary critic and magazine publisher)- @Oprah
Wil Wheaton – @wilw
Athletes/Sports
Lance Armstrong (Tour de France winner)- @lancearmstrong
Shaq (Shaquille O’Neal) – @THE_REAL_SHAQ
Bands, Musicians
Britney Spears – @britneyspears
Coldplay – @coldplay
David Crowder Band – @crowderband
Jeremy Camp – @jeremycamp
John Mayer – @johncmayer
kj52 – @kj52
Lecrae – @lecrae
MC Hammer – @MCHammer
Businesses/Corporations
ATT News – @ATTNews
Events
Iowa State Fair – @IowaStateFair
Models
Brooke Burke – @brookeburke
Politicians
Al Gore – @algore
John McCain – @SenJohnMcCain
Rania Al Abdullah (Queen of Jordan) – @QueenRania
Press/News
CNN Breaking News – @cnnbrk
David Gregory (Host of NBC’s Meet the Press) – @davidgregory
George Stephanopoulos (ABC News Chief Washington Correspondent) – @GStephanopoulos
Glen Beck (host of The Glenn Beck Program, a nationally-syndicated talk-radio show) – @REALGlennBeck
NPR Politics (Political coverage and conversation from NPR News) – @nprpolitics
Terry Moran (Nightline co-anchor) – @TerryMoran
The New York Times – @nytimes
Tech
AppleInsider.com – @appleinsider
Amber MacArthur – @ambermacarthur
Biz Stone (Twitter co-founder) – @biz
blip.tv – @bliptv
Chris Pirillo – @chrispirillo
Darren Rowse (problogger) – @problogger
Erica Sadun – @ericasadun
Gnomedex Conference – @gnomedex
Jack Dorsey (Inventor, Founder, & Chairman of Twitter) – @jack
Leo Laporte – @LeoLaporte
MarsPhoenix (robotic spacecraft on a space exploration mission on Mars) – @MarsPhoenix
Marta Costello (gnooze) – @gnooze
Michael Arrington (Founder of TechCrunch) – @TechCrunch
Mosso – @Mosso
NASA (the United States government, responsible for the nation’s public space program) – @NASA
NASA HQ PHOTO (NASA Headquarters Photo Department) – @nasahqphoto
Picnik.com – @picnik
ping.fm – @pingfm
Remember The Milk – @rtm
Revver.com – @Revver
Twitter – @twitter
Veronica Belmont – @Veronica
woot.com – @woot
woot.com blabber – @wootblabber
Woot Shirt – @wootshirt
WordPress – @wordpress
Television Host
Ryan Seacrest (host of the FOX reality show American Idol) – @RyanSeacrest
Twitter Tools
TrackThis (track shipping) – @TrackThis