Lets see, I'll just go through my abo list (a very long one...)
Afrotechmods - good tutorials
AvE - technical/mechanical stuff
colinfurze - crazy inventions
Grant Thompson - "The King of random" - the name says it
GreatScott - good project videos & tutorials
jimmydiresta - woodwork, metalwork (time lapse)
Julian Ilett - King of cheap stuff
mikeselectricstuff - teardowns
mjlorton - interesting videos about all sorts of stuff, main interest is solar power
Mr. Carlsons lab - just for the enviroment
Periodic Videos - Chemistry departement of Nottingham University, really good videos about the elements
Sullcom Hobby Electronics - Really extensive and interesting project videos
Ben Heck Show - Weekly "Maker" projects on a slightly advanced level
Post Apocalyptic Inventor - German, making videos mainly about repairing tools
Signal Path Blog - High end gear teardowns, repairs and reviews
SloMoGuys - the name says it
w2aew - Ham radio, tutorials, mainly on descrete basic stuff
Some scientific organizations like NASA, ESA and CERN
For the other Geman Guys:
Fynn Kliemann - just funny, carzy stuff, almost married with his duct tape and angle grinder
AND EEVBlog - thank you Dave for about 900 perfect videos
