YouTube has joined the vertical video ad battle with groups such as Facebook, Instagram, Spotify, and Snapchat.
Snapchat pioneered the format back in 2014.
70% of YouTube watch time is on mobile.
Below is an example:
Flashback: With IGTV, Instagram is betting that people want longer vertical videos
More #1: One of the World’s Biggest YouTube Channels Just Got Sold
More #2: Not all popular YouTubers are raking in cash for their videos