Overleaf - The online platform for scientific writing. Overleaf is free: start writing now with one click. No sign-up required. Great on your iPad.
Tribe of Mentors - Short life advice from the best in the world, by Tim Ferriss
TeXworks - The TeXworks project is an effort to build a simple TeX front-end program (working environment)...
MentorCruise - Personalized mentorship experiences
Archimedes - Archimedes is a LaTeX and Markdown editor designed to make mathematical writing easy.
Frontend Mentor - Supercharge your front-end skills by building in a real-life workflow. Solve real-world HTML, CSS and JavaScript challenges whilst working to professional quality designs.