A simple link to your video in your email signature can be an effective driver of traffic. As mentioned earlier, comments, shares and likes (thumbs up) are important ranking signals. Considering that your email recipients are most likely your service users, they are the audience most likely to be interested in video content related to the news and services that your business provides. Furthermore, a satisfied customer will more likely share the video if they find it useful.
If your audience is getting bored, YouTube is using that to determine how good your video really is. So, if people are watching it all the way through, if they're totally engaged, then YouTube is going to rank you better than somebody who has a video where they watch the first 10 seconds and they're out. So that's something to keep in mind. You're going to want to look at those reports and make sure that you have the attention that you need. And if you're not, do something to fix it. Make sure that your next video is awesome all the way through, or recreate that video with a new version that's going to garner the attention that you really, really want and need.

Anyway… I’ve been pulling out all the stop to get my Youtube videos ranked, but NOTHING is working. I have just realised though that all of my purchased, drip-fed, high-retention views are from mobile devices. Is this why I’m nowhere to be seen on Google’s SERPs? Also, do you have an e-mail address I could contact you at? I don’t want to take over your comments section single-handedly lol.