1. Alliance for Audited Media:
http://www.auditedmedia.com/news/research-and-data/top-25-us-newspapers-for-march-2012.aspx
, zugegriffen: 28.03.2014
2. American Society of News Editors:
http://asne.org/content.asp?pl=24&sl=83&contentid=83
, zugegriffen: 28.03.2014
3. Associated Press Media Editors:
http://www.apme.com/?page=apmeHistory
, zugegriffen: 28.03.2014
4. Associated Press:
http://www.ap.org/company/history/ap-history
, zugegriffen: 28.03.2014
5. Association of Public Television Stations:
http://www.apts.org/about-apts
, zugegriffen: 20.02.2014