Facebook said late Thursday it will begin to prioritize posts in the News Feed from friends and family over public content and posts from publishers. The company will also move away from using "time spent" on the platform as a metric of success and will instead focus on "engagement" with content, such as comments. From a report: The social media platform will de-prioritize videos, photos, and posts shared by businesses and media outlets, which Zuckerberg dubbed "public content," in favor of content produced by a user's friends and family. "The balance of what's in News Feed has shifted away from the most important thing Facebook can do -- help us connect with each other," Zuckerberg wrote in a Facebook post announcing the change. "We feel a responsibility to make sure our services aren't just fun to use, but also good for people's well-being."