Books, Fountain, and YouTube. I do a lot of reading of books, and that is where I get the highest quality and most enduring learning. Most of what I watch on YouTube is also available in podcast form, so I listen on Fountain in the car, or watch on YouTube at home with my wife the things she is also interested in. Nostr (Primal mostly) is a growing source of information, and there are dozens of other sites I go to for specific things, such as go.dev right now.