GrowthList - A crowd-sourced list of growth hacks
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.
GrowthHackers Projects - Growth collaboration software for teams 📈
Language Learning with Netflix - Use movies as study material for language learning
Marketing Examples - A gallery of real world marketing case studies. Updated every day.
Word Chain - Word Chain is an application related to words and forming the chains of letters.