I think it's a fine idea; you have alot of good videos and some of us are so focused on our issue that we tend to forget other stuff that could help us.
2) comment, at youtube, on the video. Even the smallest comment helps.
3) subscribe to my youtube stuff at youtube.
Apparently, these things all help a lot to get the current video, and future videos, seen by more folks. I'm still trying to understand it all, but these three things seem pretty important.