The Linux Experiment - Making the Linux desktop accessible: no techno lingo, no command line voodoo, no super technical content.
Bryan Lunduke - Bryan Lunduke is a former Software Developer, former Software Tester, Vice President, former Linux marketing guy, former writer for Network World, former openSUSE Board Member, and a long forum Linux discussion host on YouTube.
Level1Linux - The Level1Techs team is very knowledgeable while stilling being sociable as content creators. Wendell in-particular is often the feature figure of the Level1Linux content.
Blender guru - Free and commercial tutorials
Egee - Informative and entertaining videos about Open Source Software, Gaming, and other loosely related things.
Luke Smith - Everything you're looking for is here: http://lukesmith.xyz