As Snapchat has increased in popularity, so has vertical video, and for obvious reasons. The burgeoning social app is vertically-oriented, as are other, highly personal services such as Facetime and Skype. As this Webinar featuring presenters from Rubicon, Inmobi and Virool points out that’s leading to increased interest in vertical video.

The interest is occurring against the backdrop of exploding interest in video, and in mobile video advertising. According to figures presented by Rubicon: