Highbrow — Bite-sized courses delivered straight to your inbox every morning.
WikiWand — Slick new interface for Wikipedia.
Britannica — General knowledge encyclopaedia.
University of Reddit —Web-site where Redditers could teach each other.
TodayILearned — SubReddit where people share interesting general knowledge facts.
Daily Curiosity — App to learn 5 things a day from Curiosity.com.
Quora — A question-and-answer website where questions are asked, answered, edited and organized by its community of users.
BrainPump — Library of entertaining videos on general knowledge topics.
Khan Academy — Service offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace.
TED Ed — Library of short educational videos.
Socratic — Educational Q&A site where students ask questions and our community teaches them the answer.
Crash Course — Educational YouTube channel.
Mental Floss — Test your knowledge with amazing and interesting facts, trivia, quizzes, and brain teaser games.
Brain Pickings — Insightful long form posts on life, art, science, design, history, philosophy, and more.