Here are some advent and holiday calendars for 2020:
- Web Performance Calendar – The speed geek’s favorite time of the year
- Advent of Code 2020
- Perl Advent Calendar 2020
- Lean UXmas 2020 – The top articles from 2020’s Agile & Lean UX News
- 24 Days in December – Thoughts of the PHPamily
There is one in French:
- 24 jours de web : Le calendrier de l'avent des gens qui font le web d'après
If you know any interesting holiday or advent calendars, please post them in the comments.
