I've started collecting my favorites collection long time ago. Currently I have around 20-30 folders in my fav-nav bar which i constantly use when I need to refresh my memory in any regards of software development or automation.

I want to share some very valuable links I've collected through the years. One thing to keep in mind - mostly I use ruby for programming and Minitest framework for automation so there will be a lot of ruby goodies.

Software Automation:
Selenium GitHub - https://github.com/SeleniumHQ/selenium
Cheezy Page Object  - https://github.com/cheezy/page-object
Best Xpath Tutorial - https://www.guru99.com/xpath-selenium.html
Regex Editor - https://rubular.com/
Ruby Doc Selenium - https://www.rubydoc.info/gems/selenium-webdriver/0.0.28/Selenium
Ruby Doc Page Object - https://www.rubydoc.info/github/cheezy/page-object
Data Faker - https://github.com/stympy/faker

Ruby and Ruby on Rails Programming:
Ruby Style Guide - https://github.com/rubocop-hq/ruby-style-guide
Ruby Warrior - https://www.bloc.io/ruby-warrior#/
The Odin Project - https://www.theodinproject.com/
Ruby Docs - https://ruby-doc.org/
Good Blocks Explanation - https://mixandgo.com/learn/mastering-ruby-blocks-in-less-than-5-minutes
Models and .self in Ruby - http://lizabinante.com/blog/modules-and-self-in-ruby/
Rails API - https://api.rubyonrails.org/
Ruby on Rails docs - https://guides.rubyonrails.org/index.html
Go Rails Tutorials - https://gorails.com/
For volunteering check Ruby for Good - https://rubyforgood.org/

Other:
GIT Branching - https://learngitbranching.js.org/

I will be updating this post to keep it up to date.