That means those person(s) who have a YouTube channel and they post videos there..
Suggest them here and ill add them to the list :)
Davedays - http://www.youtube.com/user/davedays#p/c/0/SJsILJvtik4
RayWilliamJohnson - http://www.youtube.com/user/RayWilliamJohnson
iJustine - http://www.youtube.com/user/ijustine
SHAYTARDS - http://www.youtube.com/user/SHAYTARDS?blend=1&ob=5
SingUp4Ko - http://www.youtube.com/user/SignUp4Ko
First three all suck ***. Hard.
Shay and his family are awesome, though I've recently stopped watching their stuff just due to time constraints.
Dunno SingUp4Ko
I very much like TobyTurner/Tobuscus as well as BlueXephos/Yogscast.
I used to watch ElevatorShow and ManInTheBox (same people, different shows) but ElevatorShow is stopping. This is the last season and ManInTheBox stopped years ago, I believe.
Either way, still awesome to watch if you haven't seen them. Though that might just be my horrible humor. =P
Edit: Also, brentalfloss. His video-game-music-with-lyrics videos are pretty awesome.
Edit II: NICEPETER! How could I forget?