Mediagazer: The Information announces two hires, including WSJ media reporter Martin Peers as columnist (Jessica E. Lessin/The Information)

11:15 AM ET, September 8, 2014

Top News:

With Videos of Killings, ISIS Sends Medieval Message by Modern Method — The ostensible purpose of the recent videos that show the beheadings of two American journalists by Islamic militants is to deter attacks — your missiles on our positions will beget our knives on Western hostages — but the true aim is to spread dread and terror.

Discussion: @michaelwolffnyc, @carr2n, SocialTimes, @pkafka and @ddknyt

James Doleman / The Drum:

Questions remain over new press regulator IPSO as it launches — Today (8 September) sees the launch of a new regulator for the press as the Independent Press Standards Organisation (IPSO) replaces the Press Complaints Commission (PCC). — Why IPSO? — The PCC, which was set up in 1990 …

Discussion: Guardian, BBC, Press Association, The Independent, Harborough Mail, iMediaEthics, Border Telegraph, HoldTheFrontPage and Herald Scotland

Jason Deans / Guardian:

Victims of press intrusion brand new regulator Ipso a sham — Parents of Milly Dowler and Madeleine McCann among signatories of letter attacking publishers for rejecting Leveson — Madeleine McCann's parents Kate and Gerry were among 30 victims of press intrusion who signed the letter.

Jessica E. Lessin / The Information:

The Information announces two hires, including WSJ media reporter Martin Peers as columnist — Welcome Martin Peers and Stephen Nellis! — I am delighted to announce that Martin Peers, a longtime Wall Street Journal media reporter and editor, is joining The Information as a columnist.

Discussion: New York Times, The New York Observer, @mvpeers and Talking Biz News

Anthony Ha / TechCrunch:

Twitter Announces Its First Commerce Product — A “Buy” Button On Mobile — After months of reports and rumors, Twitter is announcing its first commerce product. — The company first signaled its interest in this area last year, when it hired former Ticketmaster CEO Nathan Hubbard to lead its commerce team.

Discussion: The Twitter Blog, AdAge, Business Insider, VentureBeat, Adweek, ZDNet, Wall Street Journal, The Wall Blog, Softpedia News, Billboard, Associated Press, CNET, Re/code, USA Today, Wired, New York Times, Consumerist, Engadget and The Verge

Michael Calderone / The Huffington Post:

Politico Executive Editor Rick Berke Resigns Over Newsroom Strategy Differences — NEW YORK — Politico executive editor Rick Berke resigned Sunday, writing in a staff memo that he disagreed with co-founders John Harris and Jim VandeHei over strategy for running the Washington news organization.

Discussion: New York Times, Washington Post, The New York Observer, Talking Points Memo, @mlcalderone, @mlcalderone and @mlcalderone

Ravi Somaiya / New York Times:

Bloomberg News Stands Out With Editorial Policy to Not Report on Itself — On the Forbes list of the world's billionaires, Michael R. Bloomberg appears at No. 15, with a net worth of $33.6 billion. But on his own company's ranking, the Bloomberg Billionaires index, he appears nowhere.

Discussion: FishbowlNY, @pierrebri, @markscott82, @hblodget, @edmundlee, Talking Biz News and New York Magazine

Manuel Roig-Franzia / Washington Post:

Chuck Todd's ‘Meet the Press’ debut: A straight-talking work in progress — There was no revolution Sunday as Chuck Todd debuted as host of “Meet the Press,” NBC's venerable, venerated and vulnerable talk show. Little about Todd's first hour redefined Sunday talk-showing as we know it.

Discussion: New York Times, NBC News, Guardian, @roigfranzia, The Huffington Post, @buzzfeedben, @carlquintanilla and Christian Science Monitor

Al Jazeera PR:

Al Jazeera Arabic retracts an article suggesting that beheadings of US journalists were staged — Statement: Al Jazeera Arabic retracts US journalists article — Al Jazeera Arabic, the sister channel of Al Jazeera English, has retracted an article from its website which suggested …

Discussion: @jenanmoussa, @moneyries, @chrismdwyer, @mlcalderone, @patrickosgood and The Huffington Post

Todd Spangler / Variety:

Spotify Bows First Video Ads, with ‘Takeover’ Spots from Universal and Others — Spotify has found a new way to interrupt your streaming-music playlist. — The service unveiled its first video-ad products — for both desktops and mobile devices — with worldwide launch partners NBCUniversal's …

Discussion: AdAge, VentureBeat and TechCrunch

Jonathan Peters / Columbia Journalism Review:

Why California's smartphone ‘kill switch’ law should concern journalists — An antitheft measure creates the risk that the government could interfere with newsgathering — Imagine this. — You're a journalist covering a street protest, and the local police chief doesn't like the photos you're tweeting from your iPhone.

Discussion: @jonathanwpeters

Kellie Riordan / Guardian:

Is showing emotion the same as taking a stance? And what place does a journalist's opinion have in the digital space? — Is showing emotion the same as taking a stance? And what place does a journalist's opinion have in the digital space? — If you think of the names that have created …

Discussion: @mrbenjaminlaw, @murpharoo and @antloewenstein