Media Quotes of the Week: From press condemned for carrying mosque terror video to the bad boys of Brexit say they played the media like a Stradivarius

George Trefgar @GeorgeTrefgarne on Twitter: "I cannot believe that @MailOnline is showing video footage live-streamed, with sound, from the New Zealand killers’ headcam on its home page. You can just stumble across it. A classic example of how digital media need regulation. Barbaric. And what happened to self-restraint?"

Raymond Snoddy@RaymondSnoddy on Twitter: "That was a shocking editorial decision even social media has now taken video of the New Zealand murders down - you expect more from trained journalists and news editors of MailOnline."

MailOnline in a statement: "In common with many other news organisations around the world MailOnline carried for a time a very short excerpt from beginning of the Christchurch mosque gunman’s video that showed no violence or victims. On further reflection we decided to remove it."

Lloyd Embley @Mirror_Editor on Twitter: "For a brief period this morning the Mirror website ran some edited footage filmed by the gunman in Christchurch. We should not have carried this. It is not in line with our policy relating to terrorist propaganda videos."

New Zealand prime minister Jacinda Ardern , quoted by BBC News: "We cannot simply sit back and accept that these platforms just exist and that what is said on them is not the responsibility of the place where they are published. They are the publisher. Not just the postman. There cannot be a case of all profit no responsibility."

David Yelland @davidyelland on Twitter: "Speaker getting one of the biggest kickings in Fleet Street history tonight... but it is these papers that created this mess, not him. They misled readers and led them to disaster."

Committee to Protect Journalists @pressfreedom on Twitter: "At least 1,337 journalists have been killed while covering the news since 1992. Their names form The #LastColumn logo. Each time a journalist is killed, their name will be added to the logo. #pressfreedom"

Media Reform Coalition media ownership report: "Just three companies (News UK, DMG and Reach) dominate 83% of the national newspaper market (up from 71% in 2015). This is a market that may be shrinking interms of print circulation but, assisted by large online audiences, is crucial when it comes to settingthe agenda for the rest of the news media. When online readers are included, just five companies (News UK, DMG, Reach, Guardian and Telegraph) dominate some 80% of market share (up from 79% in 2015). In the area of local news, five conglomerates (Gannett, Johnston Press, Trinity Mirror, Tindle and Archant) account for 80% of all titles (it was six companies back in 2015) while 57 smaller publishers have less than 20% of the remaining titles. Local newsrooms continue to haemorrhage journalists while we are facing an increasing number of news deserts given the fact that, as of 2017, two-thirds of Local Authority Districts do not have daily local newspaper coverage."

• The report concludes: "The levels of concentration revealed in this report demonstrate that we need action that will challenge blockbuster media and tech companies and the influence that flows from their dominance of infrastructure, content and distribution."

Owen Jones @OwenJones84 on Twitter:"Want to work in the media but don’t want obsessive hatred from your “colleagues”? Easy solution: don’t criticise how the media works and just spend your time attacking Muslims or migrants or refugees or trans people instead!"

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Owen Jones @OwenJones84 on Twitter: "I'd like to clarify that there are many very good journalists, that challenging much of the media for inciting and fuelling racism doesn't mean that all the journalists working there are racists, and that The Guardian provides space for excellent anti-racism voices."

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Mark Di Stefano @MarkDiStef on Twitter: "I’ve come to the sober realisation that the president of the United States watches more TV and tweets more than me, a media reporter."

Brexit backer Aaron Banks quoted by Ed Caesar in The New Yorker: “We played the media like a a Stradivarius," noting that “if we spent eight million in the referendum, we got thirty-five, forty million in free publicity” by outraging liberal commentators."