Facebook Puts a Downer on Upworthy

Facebook Inc. changed its newsfeed algorithm. You'll never believe what happened to Upworthy's traffic next.

At the end of last year, Facebook made substantial changes to the way that its little algorithmic worker bees assemble everyone's newsfeed. At the time, there was a lot of speculation that this was targeted at viral wondersites such as Upworthy, whose entire business plan seems to rest on clickbait headlines that multiply across newsfeeds like some sort of superbug.