If people actually care about this topic, and want to see someone doing a genuinely good job, check out LiveOverflow. Some other posters here will make fun of his dubstep intro music, green on black terminal text intro with the Rabbit, but he admitted in his first QA it was tongue and cheek.
His subreddit:
https://reddit.com/r/liveoverflow
His YouTube channel:
https://www.youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w
I have taken more traditional infosec coursework for $DAYJOB. I must say this stuff, the more novice stuff beneath and the more advanced stuff above my head, is well structured, even if informal, entertaining, and inspiring. I definitely want to give back to the community like him with solid content and a very unassuming attitude. This is exactly the kind of teacher we need in this space!
(This is not to say F Security is assuming or crappy, I just wanted to talk up someone who really is teaching how to hack the way I think it ought to be done!)