Facebook to sell video ads in other apps
Facebook is now selling its autoplay video ads to its Audience Network. Facebook's Audience Network is a network which allows advertisers to use users' Facebook data to serve you ads inside other apps. This should help boost Facebook's ad revenues as there is a limit to how many ads it can show its users in their news feeds. 
Getting aurally blasted by a loud, autoplaying video ad while you're browsing online is certainly one of the more annoying experiences you can have on the Internet.

But when the volume default setting on such an ad unit is set to mute—giving viewers the choice to unmute—and when the video is embedded rather than storming the screen, the annoyance factor drops drastically. This is what Facebook has done with its silent autoplay in-feed videos, a format that has advertisers eagerly investing, and it's an approach that is also attracting plenty of competitors.