It is highly resistant to being taken down and has excellent, curated content.
Audiobooks are intellectual property, protected by copyright law. Unlike borrowing a physical book from a library, downloading a torrent creates a digital copy without compensating the author, narrator, or publisher. Audiobook Torrents download list
1337x is a leading public torrent tracker that, while not exclusively for books, has a robust "Other" or "Books" category. It is highly resistant to being taken down
Here's a basic overview of how torrenting works: curated content. Audiobooks are intellectual property