I'm not a fan of youtube and how addicted young people are to it.
I once read an amusing article that parodied this sentiment by pretending that books were a new technology. All the kids were staying inside with their heads down in fantasy worlds instead of out living life. Of course books are slightly more mentally engaging than this. I actually find that watching videos on YouTube ends up being a very social thing, but anyway..
http://m.youtube.com/watch?v=UXyHf_SpUUI (Reggie Watts being wonderful and weird for half an hour, stick it out)