Depending on your level, it might be quite basic, but the titles of the videos are simply superb, and each video deals with a concrete topic so it's easy to follow along.
Not coding, VPRO from the Netherlands (English language) has some great "hacker" interest documentaries, e.g. the future of renewable energy, growing vegetables under LEDs or high frequency traders: https://www.youtube.com/user/VPROinternational/videos
Jeorg Sprave is a German guy who makes truly insane catapults, slingshots, bows, cannons, modified Nerf guns, etc and demonstrates their use: https://www.youtube.com/user/JoergSprave/videos
Depending on your level, it might be quite basic, but the titles of the videos are simply superb, and each video deals with a concrete topic so it's easy to follow along.
Not Youtube, but /r/watchpeoplecode has some great videos, often from Twitch: https://www.reddit.com/r/WatchPeopleCode/
Next Day Video has some great talks: https://www.youtube.com/user/NextDayVideo/videos
Not coding, VPRO from the Netherlands (English language) has some great "hacker" interest documentaries, e.g. the future of renewable energy, growing vegetables under LEDs or high frequency traders: https://www.youtube.com/user/VPROinternational/videos
Hardware hacking (admittedly I haven't watched it much): https://www.youtube.com/channel/UCfo1-oOnGqp1UgygGqlZL4A/vid...
CGP Grey: https://www.youtube.com/user/CGPGrey/videos Great
For coding/concerntration music, this music has some really nice electronic music: https://www.youtube.com/channel/UCqaay_q0YERQBEg4o5EjvZw (warning the "cover" images are quite porn-y and NSFW, but the music is good)
EDIT: Mighty car mods is a hilarious pair of lads from Australia, they do funny and informative car mods to some sweet Japanese cars: https://www.youtube.com/user/mightycarmods/videos
Jeorg Sprave is a German guy who makes truly insane catapults, slingshots, bows, cannons, modified Nerf guns, etc and demonstrates their use: https://www.youtube.com/user/JoergSprave/videos