Stealth advertising in youtube channels is popular, so popular we have badlanders happening. Maybe this type of advertising should have its own name? Ambush advertising? Kiss and sell?
Lets start with this one, from 2011 and Violence against women EU - "Cover the blemishes". A lovely lady shows us how to cover blemishes in a youtube style makeup-tip video, and then the door opens behind her and my heart sinks to my stomach. The renovation noise only added to the growing tension. Well done. You would find this ad on youtube when you looked for makeup tutorials. It was right there, on the right hand side, looking deceptively normal.