I don't how others think of it, but it takes me way too long when I try to find some decent MKSC vids on youtube. And when I finally find somtehing, then it's most of the time too high-leveled.
I want to collect all of the MKSC player's youtube channels in this topic and I will sort them by ARR, so everyone can just come here and find the right vids.

This is what I fouhnd so far:
*Note: It is possible that there aren't any MKSC vids on the channel, I still have to check that*

#1 Sebastian Stellmacher (Myth A) - http://www.youtube.com/user/Boom3r2007
#2 Mickael Smolen (Myth D) - http://www.youtube.com/user/SuperYoshi1karter
#3 Pierre L'Hoest (Myth E) - http://www.youtube.com/user/KartSeven
#4 Florian Chollet (Titan A) - http://www.youtube.com/user/flo233
#5 Yunus Aricanli (Titan B) - http://www.youtube.com/user/brutuskart
#7 Guilherme Arantes (Titan C) - http://www.youtube.com/user/gasasmk
#8 Stacy Needham (Titan B) - http://www.youtube.com/user/Atheisthoverfish
#9 Ben Allen (Titan D) - http://www.youtube.com/user/Oxyacetelene
#10 Alencar Faria (Titan D) - http://www.youtube.com/user/pepipenoium
#12 Chris Flemmer (Titan E) - http://www.youtube.com/user/MetalSmasher86
#13 Daniel Pabst (Titan E) - http://www.youtube.com/user/Ebucemag
#14 Matt Ellis (Titan E) - http://www.youtube.com/user/mkscmaster
#17 Alvin Van Asselt (Hero A) - http://www.youtube.com/user/alvinvanasselt
#20 Karel Van Duijvenboden (Hero C) - http://www.youtube.com/user/KarelvanD
#21 Florian Valandina (Hero C) - http://www.youtube.com/user/Rival1991
#24 Cole Gibert (Hero C) - http://www.youtube.com/user/colegilb
#26 Florent Lecoanet (Expert A) - http://www.youtube.com/user/Neo351
#27 Luca Barbetta (Expert A) - http://www.youtube.com/user/termoPilucco
#28 Kevin McAteer (Expert A) - http://www.youtube.com/user/Kmacc11
#29 Manuel Babjar (Expert A) - http://www.youtube.com/user/BanjoSMK
#31 Robert Lee (Expert B) - http://www.youtube.com/user/robman60
#32 Kevin Borne (Expert B) - http://www.youtube.com/user/Nivekenrob
#35 Tom van Kessel (Expert C) - http://www.youtube.com/user/MrVK1993
#36 Timur Ahmad (Expert D) - http://www.youtube.com/user/NPZwiebel
#46 Chuck Foster (Advanced B) - http://www.youtube.com/user/imhereguy
#48 Tom Gaffikin (Advanced B) - http://www.youtube.com/user/thomasgx1
#49 Alex Hantson (Advanced B) http://www.youtube.com/user/hantson
#51 Nicola Torre (Advanced B) - http://www.youtube.com/user/DarkRoy4
#62 Daniel Sampson (Intermediate A) - http://www.youtube.com/user/magiclapras
#64 Christophe Charignon (Intermediate A) - http://www.youtube.com/user/Lafungo
#73 Stephen Meakings (Intermediate B) - http://www.youtube.com/user/Orengefox
Terrence Fenner - http://www.youtube.com/user/GhettoKarter1992

Others (WRs):
http://www.youtube.com/user/wrvids
http://www.youtube.com/user/MKSC

If anyone knows more channels, than I'll be happy to add them.

Nice idea, I found this one:
#49 Alex Hantson (Advanced B) http://www.youtube.com/user/hantson#p/u

mines thomasgx1 not sure if i have many mksc on there tho