It’s not completely new. You’ve seen it used on Gawker Media main pages but now it’s apparently available for us regular folks who post elsewhere on Kinja. Now we can do that fancy Recommended Stories thing at the bottom of the posts.
You should see a new button in the editor. When you click on it a widget will appear at the bottom of the post allowing you to add URLs. It only works for adding links to other Kinja posts (at least that’s all that worked for me). You also have to add multiples of three or you get an error message.
I posted links to posts I wrote starring Flarrowverse actors as an example below.