免费的中文网上书库有很多。以前零星上过一些免费的英文书库。现在EduChoices来了个总结，不客气，全文转载。
1. The Online Books Page
The University of Pennsylvania’s Online Books Page is one of the best places to read free books online. There are more than 30,000 English works available. All of them are formatted nicely and can be read right on your computer.
2. Project Gutenberg
Project Gutenberg is the original producer of free electronic books. There are currently more than 25,000 books in the site’s online catalog and 100,000 more titles available from Gutenberg’s many partners and affiliates.
3. Questia
Questia is probably best known as a resource for students and writers, but the site also hosts an outstanding library with more than 5,000 free books that can be read online. Offerings include classics and rare books.
4. Classic Book Library
This free online library stocks the world’s most treasured classics. Books are sorted by genre–children’s literature, romance, mystery, science fiction and historical fiction–and include the writings of authors like L. Frank Baum and Jane Austen.
5. FullBooks.com
FullBooks.com offers thousands of unabridged books that can be read for free online. All of the books are sorted by title. FullBooks.com also includes links to sites that have free reference books, science books and biographies.
6. Internet Public Library
The Internet Public Library is a great place to access magazines, newspapers and reference works. Site visitors can also find nearly 100 links that will take them to websites offering free books online. Links are updated on a regular basis and include descriptions that make it easy to find what you are looking for.
7. Classic Reader
With nearly 4,000 free books, Classic Reader is a great place to find classic books, plays, poems and short stories. You can read the books for free on the site and add your own annotations.
8. Authorama
Authorama features free books from a wide variety of authors. All of the books in this online library are public domain books in XHTML, which means that formatting and illustrations have been preserved. There are currently more than 100 free books available and new books are added on a regular basis.
9. Bored.com
Bored.com is exactly what the name implies–a site for people who are bored online. The site offers thousands of free books can be stored on your computer and read online. Book offerings include but are not limited to American literature, British literature, children’s books, cookbooks, textbooks and reference books.
10. Read Print
Read Print is a free online library designed for students, teachers and readers of classic books. The well-organized site has thousands of free books sorted by author. Other site features include literature articles and a special section on Shakespeare.
11. The Literature Network
The Literature Network has thousands of free books, short stories and poems that you can begin reading immediately. The site also includes a slew of author biographies, quizzes and user comments.
12. LibriVox
LibriVox is a unique online library that caters to both readers and listeners. The site offers free audio books as well as links to text versions that can be read online. Other site features include author bios, book summaries and links to additional book-related content.
13. Bartleby
Bartleby is one of those sites that you want to bookmark the moment you discover it. This Internet publisher has a huge collection of free books that can be read on your computer. Offerings include, but are not limited to: fiction, nonfiction, verse and reference works.
14. Classic Bookshelf
The Classic Bookshelf is an especially nice place to read classic books online because of the site’s easy readability program. Users can bring up the free book of their choice and decide how they want the screen to look. Things a reader can customize include the color of the page, the color of the text, margin size, print size and font.
15. ReadBooksOnline.net
Although this website could be prettier, it is a good place to read free books online. The site has more than 1,000 books by hundreds of different authors. Offerings include the best of American, British and Irish literature.
16 Chest of Books
If fiction isn’t your thing, Chest of Books is the place for you. This free online library has tons of nonfiction books on a wide range of topics, including art, business, computers, finance, gardening, health, history, home improvement, real estate, science, sports and travel.
17. PublicLiterature.org
PublicLiterature.org has a great selection of free classic books that can be read for free online in a user-friendly interface. The site also features works from accomplished authors around the world. Reading categories include children’s, classics, comedy, fiction, nonfiction, plays, poetry and sci fi.
18. Biblomania
Biblomania has over 2,000 novels, poems, short stories and plays that can be read for free online. New books are added every month. Biblomania also provides study guides, literature articles and a wide range of resources for students.
19. International Children’s Digital Library
The International Children’s Digital Library Foundation has a growing collection of free books for children around the world. Books are available in multiple languages and most include user-submitted activities and other content that can be viewed in conjunction with the books.
20. Public Bookshelf
Public Bookshelf has something to suit you no matter what your interests. This online library gives users the chance to read classic books and discover new authors. Free book categories include but are not limited to fantasy novels, history books, mysteries, romance novels, teen fiction and horror stories. Public Bookshelf also features an impressive collection of nonfiction.
21. Perseus Digital Library
Perseus Digital Library, from Tufts University, is an evolving digital library with a wide range of materials. New content is constantly being added. Current works include classics, modern English Literature and science papers.
22. DailyLit
DailyLit offers a unique service to people who want to read free books online. This site lets you choose the classic and contemporary books you want to read. Then, they send the books to you in installments via email or RSS feed.
23. Fiction.us
Fiction.us is a wonderful place to find free novels online. Books are split into chapters so it is easy to remember where you left off. The site also offers a nice range of poetry, plays and picture books.
24. Page By Page Books
Page By Page Books features hundreds of classic books that can be read for free online. Books can be sought by author and title.
25. Lookybook
Lookybook is a fantastic resource for anyone who is searching for children’s books. The site allows users to see entire books–including illustrations–for free. Lookybook also offers book reviews and the opportunity to buy the books you like.
非常感谢~