Sourcing the Arab Spring: A case study of Andy Carvin’s sources during the Tunisian and Egyptian revolutionsAlfred Hermida, University of British Columbia - @hermidaSeth Lewis, University of Minnesota - @sethclewisRodrigo Zamith, University of Minnesota

Institutional powerPhoto: President of the European Council - http://www.flickr.com/photos/europeancouncil/

Institutional authorityPhoto: VetforPeace - http://www.flickr.com/photos/vetforpeace/

‘Must-read newswire’Artwork: ssoosay - http://www.flickr.com/photos/ssoosay/

Tunisia: 168 sourcesPhoto: Wassim Ben Rhouma - http://www.flickr.com/photos/wassimbenrhouma/

Egypt: 185 sourcesPhoto: Ramy Raoof - http://www.flickr.com/photos/ramyraoof/

Source types• Mainstream Media• Mainstream Media

Employees• Mainstream Media Org• Mainstream New Media Org

• Alternative Voices• Non-Affiliated Activist• Bloggers• Affiliated Activist• Non-Media Org (Activist)

• Institutional Elites• Digerati• Researchers• Non-Media Org (Non-

Activist)• Celebrities• Political Actors

• Other• Bots• Joke accounts

Tunisia: Source typeN=168

Tunisia: TweetsN=332

Egypt: Source typeN=185

Egypt: TweetsN=3,291

Broader range of voicesPhoto: Ahmad Hammoud - http://www.flickr.com/photos/ahmadhammoudphotography/

Information cascadePhoto: Omar Robert Hamilton - http://www.flickr.com/photos/56458828@N02/

Reshaping the newsPhoto: Floris Van Cauwelaert - http://www.flickr.com/photos/flomobile/

Node in networked newsroomArtwork: ssoosay - http://www.flickr.com/photos/ssoosay/

Thank youPhoto: Omar Robert Hamilton - http://www.flickr.com/photos/56458828@N02/