Please go ahead and explore the menu in the sidebar.
This was inspired on Nikita Voloboev’s wiki which I recommend you to take a look if you like.
Apprenticeship Patterns by Adewale Oshineye, Dave Hoover
Computer Science Distilled by Wladston Ferreira Filho
Free Programming Books (list with books about ruby, rails, git, elixir and much more)
The Pragmatic Programmer by Andrew Hunt and David Thomas
You don't know JS by Kyle Simpson (free online)
Oleh's blog (AI, DCI, OOP, software architecture)
Thoughtbot's upcase (a TON of good content, ruby, rails, vim, tmux, testing, design, advanced rails)
Arkency's blog (ruby, rails, random posts about problems a consulting company has to go through)