- cht.sh cmd CheatSheets query
- devhints.io TL;DR for developers
- learnxiny.com Gold
- tldrlegal.com Legal overview
- dodgy-blog.com Stay safe
- toptal.com Sorting comparaison
- htmlcheatsheet.com Interactive html & css cheatsheet
- css-tricks.com Flexbox cheastsheet
- python tutor but not only python
- over the wire hacking wargame
- ninjamock quick mockups
- infographics modern infographics