The anniversary of the 9/11 attacks dominated social media from September 12-16, registering as the No. 1 subject on blogs and Twitter and among the top YouTube videos, according to the New Media Index from the Pew Research Center's Project for Excellence in Journalism.
And the way the story played out last week out helps illustrate the different functions of the three online platforms.
The conversation on blogs, often a forum for debate, was passionate and ideological in response to columns criticizing how Americans were treating the anniversary of the attacks.
The two most linked-to September 11 pieces in the blogosphere were from men far apart on the political spectrum, but who came to the same broad conclusion-that Americans were not treating the anniversary of the attacks appropriately.
One was a post on the New York Times' website from liberal columnist Paul Krugman who argued that the September 11 attacks had been shamefully politicized. Another op-ed piece, from conservative Mark Steyn, posted on the National Review Online, contended that the U.S. had turned the 9/11 anniversary into a misrepresentation of that day's events.
Krugman declared that the 9/11 attacks, rather than being a unifying event, were instead used to justify a divisive war in Iraq. "The memory of 9/11 has been irrevocably poisoned," wrote Krugman, "it has become an occasion for shame. And in its heart, the nation knows it."
That view was widely panned by both conservatives and liberals.
"The New York Times fully endorses Paul Krugman's disgusting 9/11 column, since they haven't fired him for writing it," wrote John Hayward on Human Events, a conservative publication.
"Yes, that's a nasty partisan attack on a day when most of us try to frame our commemoration of the anniversary in non-partisan terms," wrote Ed Morrissey on Hot Air, a conservative site, "It's so trite, sad, and cliched that it's hardly worth the effort to rebut."*
"The moonbat runs deep in this one," wrote conservative blogger Bluegrass Pundit.
"Fox News stunned to learn Rumsfeld had been reading the New York Times," joked Running Chicken. "So...Rumsfeld cancelled his New York Times subscription over something that he could have only read online?!?" tweeted James Skylar Gerrond.
Liberal commentators objected to Krugman's piece too, with some of them faulting him for playing into the hands of conservatives.
"The conservative blogosphere is going crazy condemning Krugman's article-and I don't blame them one bit," wrote Rick Ungar for Mother Jones, a liberal publication. "Indeed, the only thing I do not understand is why more progressives are not joining in that condemnation, as Krugman's piece only serves to set back the principles and causes of liberals and progressives everywhere."
A few bloggers agreed with Krugman.
"Paul Krugman's piece was on point," wrote John Amato at Crooks & Liars, "When I saw his piece I knew the hissy fit was coming."
"No, there is no obligation to call out Paul Krugman because the right wing blogosphere is acting, as usual, like a bunch of hypocritical phonies and staging a grand hissy fit to destroy one of the only strong national voices for the left over something they don't really give a damn about," wrote Digby.
Steyn's piece generated far less commentary-more bloggers passed the column on without comment. Those that did generally concurred with him.
Steyn argued that Americans have retreated to "cultural self-loathing, and utterly fraudulent misrepresentation of 9/11," by focusing more on topics such as diversity and healing rather than the dramatic events, heroes, victims and villains of that day.
If 9/11 triggered an ideological debate in the blogosphere, the reaction on Twitter was more unified. On that platform, the remembrance of 9/11 revolved around a much-tweeted and haunting nighttime photograph of the blue-hued spotlights at Ground Zero shining through an opening in the clouds.
Many Twitterers who shared the image thought it was beautiful and touching.
The not-yet-released new version of the iPhone continued to create a buzz on blogs and Twitter last week. Indeed, that topic has been one of the top five blog stories for six out of the last seven weeks.
On blogs, severaldifferentstoriescovering rumors about the phone were shared, making it the week's second biggest topic. Almost all of the response was from tech bloggers also speculating about the new iPhone and its design.
"The next iteration of the iPhone, once the technological master of the smart phone universe, is likely to be nowhere near the top of the today's most innovative phones," wrote Steward Wolpin at Dvice, "Yet we'll be treated to the usual Apple hoopla and subsequent huge sales, perhaps huger than any iPhone before it."
"Another day, another fresh stack of iPhone 5 rumors," wrote Chris Gayomali at Techland.
The other Twitter storyline was that Twitter is now available in five more languages, bringing its total to 17 different languages. Users made jokes about this, while a few complained that their language of choice was not yet included.
"Twitter is now available in five new languages. Unfortunately for Rick Perry & Michele Bachmann, ‘Insane Rambling' is not one of them," wrote former basketball star Bill Walton.
"5 more twitter languages, no Arabic," tweeted Khaled.
Another tech giant, Facebook, was the No. 4 subject. The stories were also about new features coming to the popular social network. One was a new Subscribe button that has implications for "journalists, celebrities and other thought leaders." The button will allow people to follow updates from these famous people.
The last tech story for the week, in fifth place, was the Windows 8 operating system, expected to be released in late 2012. Twitter users shared news of Microsoft's plans to battle against the iPad with the new operating system.
The most viewed news-related video on YouTube last week was a 45 second video clip from BuzzFeed of the September 7, 2011 Republican presidential debate, summing up that event by showing the Republican candidates repeating the words "Ronald Reagan" and "tax."
And two very different videos about September 11 also made the most-viewed news video list on YouTube last week.
The New Media Index is a weekly report that captures the news agenda of social media, with a focus on blogs, Twitter and YouTube. These platforms are an important part of today's news information narrative and shape the way Americans interact with the news. The expansion of blogs and other social media sites has allowed news-consumers and others outside the mainstream press to have more of a role in agenda setting, dissemination and interpretation. Through this New Media Index PEJ aims to find out what subjects in the national news the online sites focus on, and how that compares with the narrative in the traditional press.
A detailed description of the NMI methodology, which was recently modified in August 2011, is available here.
*For the sake of authenticity, PEJ has a policy of not correcting misspellings or grammatical errors that appear in direct quotes from online postings.