Facebook started tests inserts of video ads in customers content.
As reported tests was already started. Ads will be placed in video not shorter 90s. Facebook unlike other platform such as Youtube won't be placing video ads in the begin of content. Ad will be inserted at leas after 20s of whatching the clip. For advertisers and businesses it will mean new placement of ad content with super precise audience definition also don't forget about conversions and other abilities of Facebook platform.