Description: Project Gutenberg is an online library containing over 60,000 free eBooks. The eBooks are available in epub, Kindle, HTML and simple text formats. The library focuses on public domain content.
Type: software
Description: RemNote is a free, open-source spaced repetition and note-taking app. It uses an interconnected web of notes to promote understanding and long-term memory retention. Key features include note linking, spaced repetition flashcards, knowledge graphs to visualize connections, and excellent mobile apps.
Type: software
Pricing: Open Source