Thank or sharing bdsa, but try not to use QL as a youtube link site only. It's not just about finding clips on youtube and posting links on QL. If we all did that QL would be full of links to youtube. So much in fact that everyone may as well just go to youtube and watch clips all day.
QL is about discussion. If you happen to come across an interesting clip, by all means post it here. But make sure that you also post the reasons why you think it is interesting, and possibly what you would like to discuss about it.