The Best of the Free Internet

1) Frugal (or Gratis) to Libre

Early Retirement Extreme

Mnmlist

Appropedia  (see here for a world of value). 

Archive.org

Explainer on Gemini and Gopher*

*free internet by design.

2) Mechanical and Technical Knowledge

Survivor Library
Free Textbooks at Open Culture
Calculus Textbooks
Low-Tech Magazine (please use the solar-powered site)
No Tech Magazine
Re.silience

3) Literature / the Classics

Project Gutenberg
Complete Works of Shakespeare
Works of G.K. Chesterton
Downloadable Latin/Greek Classics with English side by side
Learning Materials for Latin
The Latin Library