9 points by rblion 11 days ago
It's a low-comment sub, but I'm a big fan of /r/damninteresting
It's described as "The reddit-specific version of the curated links section of DamnInteresting.com. These represent the nifty articles we've found (and occasional written) about science, history, and psychology."
I enjoy it because it's a shotgun approach to knowledge, rather than specific domain knowledge.
Probably some combination of
/r/learnpython. Just reading the posts plus comments and answering the occasional question has taught me a lot, most of it good.