I can't find any sense in what I saw just now on YouTube.
I was watching some random video, and of course one of those little annoying boxes came up and obstructed my view of the video I was watching. The little box that came up was advertising the "Ad Blocker" plugin that you can get Firefox and Chrome.
Seriously what's up with that? YouTube gets pretty much all its money from running paid ads, so why would they advertise an ad blocker ? ? ? ? ?