Anki - Anki is a program which makes remembering things easy. Because it's a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.
Fatherly - A practical resource for guys entering that next phase
RemNote - All-in-One Tool For Thinking & Learning
Pun Finder - Enter any word and get 'hilarious' puns to share
Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
newsletter-cli - CLI tool to write and send newsletters in Markdown