Which has seen enormous positive feedback - and youtube ads are very fair (50/50 split between you and Google), and you don't have to chase the money, it's all handled for you! Another 10% of my monthly income comes from YT, I'd guess.
The key with a youtube channel is to differentiate yourself from the rest in some way. I'm trying to do that with careful script writing and high-quality audio. Don't just dive in and waffle for 30 minutes while screenrecording, practice!