Calvin Klein, Twentieth Century Fox and Turner Broadcasting are a few of the launch brands that are testing a new mobile ad format from Tumblr that inserts a piece of ad content within popular and trending posts.
Calvin Klein, Twentieth Century Fox and Turner Broadcasting are a few of the launch brands that are testing a new mobile ad format from Tumblr that inserts a piece of ad content within popular and trending posts.
![Quintin’s Close-Ups: There’s an app for that [Source: Charleston City Paper]](https://netgalaxystudios.com/wp-content/uploads/2017/06/quintin-closeup-app-500x383.jpg)
