Hi, I've noticed ads sometime appear either a) in a pop up on top of a youtube video or b) in an image box immediately to the right of the video and above the channel description. Are these ads a function of adwords? And, if so, what strategy can one use to target specific videos? thanks!
the best you are probably going to be able to do is to to look at the keywords/tags in the video and target them using the content network.