Not just someone you watch or read casually, but a creator who genuinely taught you something that changed the way you use Linux, hardware or tech. It could be a specific video, YT channel or podcast.
Who are the people putting out content that’s actually worth your time?
As a matter of fact, I hardly use any of that.
If I search for info, I seldom land on such pages.
Although it is somewhat off-topic (i.e. not youtube, blog or podcast), I have to mention this one because it really taught me fundamental stuff that I still benefit from and changed me from mainly an educated but occasional C-programmer to a full blown bash-addict:
But if I must restrict myself to only youtube, blog or podcasts, it would be:
The Real Story Behind Wayland and X - Daniel Stone
Why-> It enabled me to write a POSIX IPC commandset for bash. (mq_send, mq_receive, mq_unlink)
Why-> The one or two takeaways I got from this blog did indeed resulted in a few minor changes I applied to my main rig.
No other blog ever achieved that.
none
I second that nomination! I have referenced that resource a number of times. It is one that I rank at the top. 
Thanks for sharing. That’s very encouraging to read. My answer would be Linuxcommunity.io and /r/homelab.
Linuxcommunity.io first. So, Linuxblog.io has been around almost 15 years, but for the first 10 or so, outside of WordPress comments there wasn’t much real interaction. Someone might leave a comment on one article, maybe share something useful, and then you never really hear from them again. Because that’s how blog comments often work.
The forums changed that. I’ve always liked forums for that reason. They’re not rushed. You can follow discussions over time, recognize people, and actually learn how others think and approach problems. It made everything feel a lot more like an ongoing conversation instead of one-off interactions.
That’s probably had the biggest impact on me over the last few years. Seeing how different people run their desktops, servers, and workflows. A lot of it is very different from how I would have done things on my own. Five years ago my view of what was “useful” in Linux was much narrower. Now it’s a lot more flexible because I’ve seen so many valid ways to approach the same problem.
Then there’s /r/homelab. That’s what really pulled me back - after a good bit of years - into the hardware and network side in a more serious way. Before that I was mostly focused on Linux itself, especially servers. The homelab community in Reddit exposed me to things like taking full control of your home network, improving WiFi coverage, and being more intentional about how everything is set up. It also got me thinking more about hardware choices.
I probably wouldn’t have ever set up a proper homelab if I hadn’t come across that community.
So for me it’s less about any single blog, YouTuber, or podcast, and more about these two communities. They’ve had the biggest impact with real people sharing how they actually build and run things over time.
That person for me would be Ermanno at EF - Linux Made Simple (https://www.youtube.com/@eflinux).
When I first ventured into vanilla Arch, his tutorial was the easiest to follow, without any hype and just the right amount of explanation. After following him, 2 or 3 times, I was launched into Arch.
I don’t use YouTube for Linux stuff and would never trust it anyway. I would trust AI more than YouTube and I have seen AI be incorrect all to often at this point in its development.
As a casual user I need good tutorials. I use UbuntuHandbook and Linuxiac for those tutorials. Good sites for causal users.
Video guides taught me that I do not like them. They are hard to follow step by step at one’s own pace. Nothing’s better than text!
The first thought is to mention Inigo Quilez articles on ray marching/ distance estimation Inigo Quilez :: computer graphics, maths, shaders, fractals, demoscene
Yes with text I can go back and reread. I don’t have to worry about understandimg someone. I also often like to copy and paste certain text from tutorials. I also find reading much quicker than a video. Text can also include pictures if needed.
I found that Okular is the best “markup” tool for PDF books/articles.
Well many probably copy and paste for the same reasons I do. Old. Poor memory. Horrible typist. LOL