Who’s on Twitter?

Mars Phoenix

http://twitter.com/MarsPhoenix

NORAD

http://twitter.com/noradsanta

Smithsonia

http://twitter.com/smithsonian

Manitoba Museum

http://twitter.com/ManitobaMuseum

Tate

http://twitter.com/Tate

Holocaust Museum

http://twitter.com/HolocaustMuseum

Franklin Mus

http://twitter.com/thefranklin

Barack Obama

http://twitter.com/change_gov

AIDG

http://twitter.com/aidg

Starbucks

http://twitter.com/StarbucksV2V

The Humane Society

http://twitter.com/HumaneSociety

Red Cross

http://twitter.com/RedCross

Science Friday

http://twitter.com/scifri

Al Gore

http://twitter.com/algore

Ntln Wildlife Foundation

http://twitter.com/NWF

Farm Aid

http://twitter.com/FarmAid

Tyson Foods

http://twitter.com/TysonFoods

BBC

http://twitter.com/bbcscitech

NPR Weekend Edition

http://twitter.com/WeekendEdition

Live Science

http://twitter.com/LiveScience

New York Times

http://twitter.com/nytimesbusiness

American Public Health Assn

http://twitter.com/PublicHealth

Zappos

http://twitter.com/zappos

Whole Foods

http://twitter.com/wholefoods

Gov. Schwarzenegger

http://twitter.com/schwarzenegger

WA St. Dept of Transportation

http://twitter.com/wsdot