Reddit
Washington Post blogger and columnist Ezra Klein held an AMA (short for "ask me anything") thread on Reddit today. His intended subject was a new elections forecasting tool he developed. But of course, many of the more than 440 questions strayed. (more...)

Inside Facebook | The Atlantic
Facebook is testing a news feed feature that promotes "trending articles" that users are reading and automatically sharing through news apps, Brittany Darwell reports. The feature could drive more users to try "frictionless sharing" apps by news orgs like the Washington Post, Huffington Post or Yahoo. Interesting and slightly related: Sarah Kendzior writes how she read one Yahoo News story about a teenager killing a 9-year-old neighbor, and the site's personalization algorithm mistakenly "decided I liked reading about child murder."

"For the next month, I woke up to a barrage of horrifying stories that seemed to signal an epidemic of child torture in America. ... Yahoo News had become my own personal Hunger Games, making me a spectator to violence I would never voluntarily seek out."

And what that example means to the rest of us: (more...)

Reuters | Storify
Reuters photographer Kevin Lamarque tells the story behind his now-famous photo of Hillary Clinton wearing sunglasses and checking her BlackBerry:

"On a secretive trip by Secretary of State Hillary Clinton to Tripoli, only days before the capture and killing of Libyan leader Muammar Gadaffi, I photographed Clinton aboard a C-17 transport plane. She was wearing dark sunglasses while texting from a makeshift desk she was working from. Okay, nice image I thought, but we were about to land in Tripoli which was certain to yield the images that the world would really want to see. Initially yes. But that was last October."

Last week it sparked a meme of 32 Tumblr posts suggesting what and who Clinton was text messaging. They got 83,000 shares on Facebook, over 45,000 Tumblr followers and a blitz of media coverage. In the end, Clinton herself joined the fun. In a Facebook chat on Thursday Lamarque said, "I am perhaps a bit old school, I don't tweet and I spend little time reading blogs, so the scope and scale of the whole thing was a bit of a mystery to me." And in the blog post, he adds: "Photographers, you never really know when your pictures will resurface and what use they will be to someone out there."

Dan Zarrella
Social media data analyst Dan Zarrella has tracked what kind of content gets "repinned" most often on Pinterest.

The lessons: Items about food (particularly recipes) and tall vertical photos seem to get the most sharing traction. So the photo embedded here, for example, seems almost irresistible to a Pinterest user. Images about design and style are the most commonly pinned overall.

The most pinned words are: love, home, things, style, ideas. Related: Those Pinterest recipes? Sometimes not so good (Gaston Gazette) | Pinterest is now the 3rd most-visited social network (AllFacebook) | Amazon, eBay add Pinterest sharing buttons (TechCrunch) || Earlier: How journalism professors are using Pinterest (Poynter) | Pinterest updates terms of use (Poynter).