Best Learning Subreddits to follow, ranked by Active Users

This is a "Learning" Subreddits ranking. We evaluate popularity by "Active Users". Active Users of a Subreddit means in recent time (example: 10 minutes), how many users visited the sub. That is similar to website "online users". Active Users is more reliable than subscriber numbers, because there are a few of subreddits with large number of subscribers have very small visits. This page can help you to find out which subs are really popular currently

Rank updated: 2019-09-20, by Active Users
Active Users / Subscribers
AskReddit - Ask Reddit... (global #1)
134,719 / 24.5M
/r/AskReddit is the place to ask and answer thought-provoking questions.
AmItheAsshole - Am I the Asshole? (global #4)
42,111 / 1.3M
A catharsis for the frustrated moral philosopher in all of us, and a place to finally find out if you were wrong in an argument that's been bothering you. Tell us about any non-violent conflict you have experienced; give us both sides of the story, and find out if you're right, or you're the asshole.
todayilearned - Today I Learned (TIL) (global #15)
27,083 / 21.5M
You learn something new every day; what did you learn today?
Submit interesting and specific facts about something that you just found out here.
explainlikeimfive - Explain Like I'm Five | Don't Panic! (global #34)
15,220 / 17.1M
**Explain Like I'm Five is the best forum and archive on the internet for layperson-friendly explanations.**


Don't Panic!
NoStupidQuestions - No such thing as stupid questions (global #57)
8,503 / 1.2M
Ask away!
IAmA - I Am A, where the mundane becomes fascinating and the outrageous suddenly seems normal. (global #59)
8,114 / 19.4M
science - Science (global #97)
5,692 / 22.4M
This community is a place to share and discuss new scientific research. Read about the latest advances in astronomy, biology, medicine, physics, social science, and more. Find and submit new publications and popular science coverage of current research.
LifeProTips - Life Pro Tips (global #98)
5,596 / 16.6M
Tips that improve your life in one way or another.
askscience - AskScience: Got Questions? Get Answers. (global #103)
5,308 / 18.1M
Ask a science question, get a science answer.
unpopularopinion - For Your Opinions That Are Unpopular (global #114)
4,673 / 748,782
Got a burning unpopular opinion you want to share? Spark some discussions!
space - /r/space: news, articles, images, videos, and discussion (global #125)
4,244 / 15.9M
Share & discuss informative content on:

* Astrophysics
* Cosmology
* Space Exploration
* Planetary Science
* Astrobiology
books - So many books, so little time (global #147)
3,519 / 17.1M
This is a moderated subreddit. It is our intent and purpose to foster and encourage in-depth discussion about all things related to books, authors, genres, or publishing in a safe, supportive environment. If you're looking for help with a personal book recommendation, consult our Weekly Recommendation Thread, Suggested Reading page, or ask in r/suggestmeabook.
AskHistorians - AskHistorians (global #204)
2,415 / 1.0M
Questions about the past: Answered!
YouShouldKnow - You Should Know (global #268)
1,646 / 1.4M
GetMotivated - Get Motivated! (global #298)
1,488 / 15.1M
Welcome to /r/GetMotivated! We’re glad you made it. This is the subreddit that will help you finally get up and do what you *know* you need to do. It’s the subreddit to give and receive motivation through pictures, videos, text, music, AMA’s, personal stories, and anything and everything that you find particularly motivating and/or inspiring.

So browse around, ask questions, give advice, form/join a support group. But don’t spend too much time here; you’ve got *better* things to do.