Trevor Timm:

Facebook is extremely meticulous about what content the public should see. Close watchers of the social media site know that most of the time you only see around 6 percent of what your friends post. For organizations who want their followers to see their posts, it's even less. But most users don't know this is happening. As Alexis Madrigal explained, more than 60 percent of users in one study "had no idea that there even was a filtering algorithm, let alone one that looks at more than a thousand data signals to determine what to show a user."

Leo Mirani:

11% of Indonesians who said they used Facebook also said they did not use the internet.

An exchange:

David Sanger: There's a lot we miss every day. I go to work every day convinced that I've got a handle on fully 3% of what's going on, okay?
Stewart Baker: [laughing] The key is [that] you can persuade us it's the most important 3%.
David Sanger: [laughing] That's right. [laughing] That's right.

Nick Halstead:

For the first time, aggregate analysis is enabled across the entirety of Facebook users -- not just the public profiles. Access to topic data opens up an entire world of previously unavailable data that includes Non-Public Posts such as status updates, Page Posts, plus Comments, Likes and Shares on posts with demographics.

Ravi Somaiya:

If Facebook pushes beyond the experimental stage and makes content hosted on the site commonplace, those who do not participate in the program could lose substantial traffic -- a factor that has played into the thinking of some publishers. Their articles might load more slowly than their competitors', and over time readers might avoid those sites.

Trevor Timm:

Jeff Bezos bought the Washington Post for $250 million dollars two years ago, breathing new life into a paper that was struggling financially for years. Facebook, which bought WhatsApp for $19 billion soon after, could buy 76 Washington Posts for that amount.