There are a lot of fantastic points in this article. Video is absolutely the way to go because of just how engaging it is with customers. But when dealing with mobile there are a couple things that you need to make sure you are doing. You need to capture their attention early since attention span on mobile (especially on apps like Facebook) is pretty low. Design the video for sound-off viewing with things like subtitles. Have a clear call to action at the end of your video. The last thing is to plan for vertical viewing since “people are 67% more likely to watch the full length of square videos than they are to watch horizontal ones.” (source: https://sundaysky.com/blog/5-mobile-video-best-practices/ )
The most underutilized space on YouTube is the description below the video where you can describe your service and put in your URL that can be clicked through. Add a call to action at the end of the video; for example, “If you liked this video, please click through my link below to find more information.” This is a great way to increase engagement. Also add the Annotations feature from YouTube to create links in the videos. This is very powerful.