Learned League

It’s a wonderful community of big ol’ nerds all competing in head-to-head trivia matches. You need a referral from a friend, but the conceit is: everyone is assigned to a group of 22-30 people. Over 25 weekdays, you go head to head against the other people in your group. Everyone in the league answers the same six questions, and you assign points to the questions for your opponent based on how easy/hard you think the question will be for your opponent. It is a fun daily trivia practice, and you often learn a lot in the process.