Cool channels on YouTube

If there are any youtube channels you're subscribed to and consider worthy of recognition amongst the most exclusive metal community  please post them here with your short recommendation.

My first pick would be 5secondfilms, a bunch of ridiculously talented people posting a 5 second video EVERY DAY.
Most videos are at least well done and there are loads of absolute 5 second little gems. If you're into random humor, this channel is a must. Oh, and check out their sketches (which are much longer than 5 seconds), they're great.

http://www.youtube.com/user/5secondfilms?feature=g-high-u

Best of 5secondfilms(playlist):
http://www.youtube.com/watch?v=UiyDmqO59QE&list=PL3A1914B7028A2697

Stooge wrote: I've only recently been registered to Youtube (I started a gmail account that I used to backup old emails, and they registered me to Youtube automatically).  So far, I'm only subscribed to 3 channels: Kevin Pollak's Chat Show: http://www.youtube.com/channel/UC1Jnt2IJ5HWjaYz-EPzglbg Amoeba (California-based music store): http://www.youtube.com/channel/UC9DkCKm4_VDztRRyge4mCJQ Ricky Gervais Channel: http://www.youtube.com/channel/UCry7B7DGVgUIa6k4Tis_DJQ

Oh, Gervais, I like him, I'm not subscribed though.

I love minutephysics too, great channel with very short videos about... physics.
http://www.youtube.com/channel/UCUHW94eEFW7hkUMVaZz4eDg

And obviously vsauce is a highly recommendable channel, sometimes the questions he asks are a little bit contrived but well... check out this video: http://www.youtube.com/watch?v=DAcjV60RnRw&feature=share&list=TLqU6t6xqyNfU

I have a youTube account but I'm not exactly active there anymore. I like some of the stuff on this one though: http://www.youtube.com/user/HISHEdotcom