Non-profit library of web pages, books, audio, and film, including the Wayback Machine.
Vetted by @lena — ReferenceOver 70,000 public-domain books, proofread by volunteers rather than scraped and auto-formatted.
Vetted by @lena — ReferencePeer-reviewed philosophy reference, each entry written and maintained by an expert on that topic.
Vetted by @marisol — Reference