For classic literature:
* Project Gutenberg: A massive library of over 60,000 free ebooks, mostly public domain works. [https://www.gutenberg.org/](https://www.gutenberg.org/)
* Librivox: Offers audiobooks of public domain works read by volunteers. [https://librivox.org/](https://librivox.org/)
For contemporary and independent authors:
* Smashwords: Features both free and paid ebooks, with a large selection of independent and self-published authors. [https://www.smashwords.com/](https://www.smashwords.com/)
* ManyBooks: Another source for free ebooks, including some contemporary works. [https://manybooks.net/](https://manybooks.net/)
For specific genres:
* The Online Books Page: A vast directory of free books, organized by genre and subject. [https://www.online-literature.com/](https://www.online-literature.com/)
* Open Library: Part of the Internet Archive, with a huge collection of free ebooks, including many with digital rights management (DRM) removed. [https://openlibrary.org/](https://openlibrary.org/)
For a curated experience:
* Goodreads: Allows you to create a reading list and find recommendations, with links to free ebooks available online. [https://www.goodreads.com/](https://www.goodreads.com/)
Important things to consider:
* Legality: While many free online books are legally available, some websites may host copyrighted material without authorization. Always check the source and ensure the content is in the public domain or legally licensed for free distribution.
* Quality: Free online books can vary in quality. Some may have formatting issues or be poorly edited.
* Functionality: Some websites may have limited search functions, browsing options, or reading tools.
Remember: Supporting authors and publishers is important! While free online books are great for exploring new genres and authors, consider purchasing books from legitimate sources whenever possible.