In 1983 90% of US media was owned by 50 companies, in 2011 90% of the media is owned by 6 companies
6 companies control 70% of TV cable
http://www.businessinsider.com/these-6-corporations-control-90-of-the-media-in-america-2012-6
(Rupert Murdoch) News Corp Australia titles account for 59% of the sales of all daily newspapers
News Corporation titles accounted for 65% of circulation in 2011
http://theconversation.com/factcheck-does-murdoch-own-70-of-newspapers-in-australia-16812
