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.
Unimus - Unimus is a Network Automation and Configuration management (NCM) solution designed for fast deployment network-wide and ease of use. Unimus does not require learning any abstraction or templating languages, and does not require any coding skills.
Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
Oxidized - configuration backup software (IOS, JunOS) - silly attempt at rancid
Busuu - Join the global language learning community, take language courses to practice reading, writing, listening and speaking and learn a new language. Learn English with busuu's .
RANCID - RANCID - Really Awesome New Cisco confIg Differ.