Making content for Youtube is a science and when you understand the formula it becomes quite easy to replicate.
Recently a number of the top Youtubers created a new channel together, The Station. They used all the tricks that had gotten them so far (boobs in the thumbnails, fast editing, weblebrity appearances, and annotations asking for favouriting and rating).
In my opinion, The script and filming is average but that just helps to confirm that with the right formula you can turn any dog into a hero. The channel is now the 15th most subscribed of all time! The show is also acting as a great tactic to get great exposure to the actor’s personal Youtube channels.
OralB have done a great job at creating what I see as the first ad that has been specifically made for Youtube. It uses a lot of the editing tricks that many of the top Youtubers employ.
Edit: Andy brought to my attention that the brand is not OralB but OraBrush