Technology
Arch Wiki
Reference for the installation, configuration, and customization of Arch Linux
Linux From Scratch
Build your own Linux distribution from the ground up
freeCodeCamp
Learn to code completely free online
The Crypto Anarchist Manifesto
Timothy May predicts freedom of information through the widespread adoption of the internet
Privacy Tools
Comprehensive index of tools for internet and computer privacy
Education
Justin Guitar
Beginner, Intermediate, and Advanced Guitar lessons, available for free
Project Gutenberg
A large collection of Public Domain ebooks
Vintage/Novelty Sites
Space Jam
Promotional site for the first Space Jam movie
Heaven's Gate
Official site for the UFO suicide cult "Heaven's Gate"
Dihydrogen Monoxide
Site warning about the dangers of an ever-present chemical called Dihydrogen Monoxide
Save Walter White
Walter Jr's fundraising site from Breaking Bad
Language Learning
Clozemaster
Practice the most common words in a language through cloze style exercises. Available for 60+ different languages.
Anki
Spaced repitition flashcard system. Good for learning languages as well as other memorization tasks
Memrise
Premade flashcards for learning languages and other subjects
Duolingo
Duolingo offers gamified learning for many languages. The stories are especially effective if you are looking for comprehensible input
Lingva Translate
Front end for Google Translate with no tracking
Coptic Place
Learn Bohairic Coptic, the liturgical language of the Coptic Orthodox Church
Latin
The Latin Library
Comprehensive library of Classical Latin literature
Latin Vulgate
Information and access to the Latin Vulgate Bible
Latin Wikiversity
Full Latin course for beginners