Truly hate to say it, but recently it's been chatgpt... Have been able to go down some really interesting rabbit holes researching topics using it.

Libgen

Kindle and Discord

Fdrpodcasts.com - the story of your enslavement, a proof of secular ethics and real time relationships, the logic of love.

I learned a lot of practical skills from YouTube, and as for other skills and knowledge - it's Google (never Wikipedia, by the way; I am surprised you take it so seriously as promoting its analog for Nost, and I went through comments, didn't see anyone mention it so far)

Youtube

I didn't learn much from here https://archive.org/, but I hope it will thrive and store tons more information. That's the 'Wikipedia' I would love.

just life, still learn day by day

Books Jack, go tell people to learn by reading books.

I'm odd, I admit it - podcasts from dozens of sources.

GREAT QUESTION!!! ...I have to say, based on frequency, it is the news sites, because current events are literally ongoing. I love Bloomberg for markets, and local and national news for the weather patterns (natural disasters, extreme weather, pandemics are as costly as anything man-made, and usuall...

4chan /pol

Twitter. But hopefuly, #NOSTR when it's working better. Shadow ban is serious on twitter.

Spotify because of podcasts

Twitter, YouTube, Arxiv are some

Youtube.

The track at the local college where I run 3x per week. All the ideas come to me on the walk home.

HackerNews and Science.org

Academy of Ideas

this ycombinator ass post cmon man

For the last months, getairchat.com has been my favourite. Twitter still is the place to go for the latest updates on any topic.

YouTube mostly, I have it on in the background and most of my reccomendations are video essays on interesting topics.

There are online courses like Coursera and MOOCs like Edx.org. They mostly teach by recording lectures via embedded videos, but also incorporate lab equipment, industrial equipment, online compilers/interpreters, quizes, text, and games to help students learn the same content via different methods.