1. 4eBooks – Thousands of free eBooks in every computer programing field with reviews and descriptions.
2. Alive and Free – Links to free ebooks of living authors
3. Arthur’s Classic Novels – Over 4000 novels from the early 20th century
4. Ask Sam – A small collection of classics, including Shakespeare, and legal, resource and government texts.
5. Baen Free Library – A small library of downloadable science fiction novels in a variety of formats.
6. Bartelby – Harvard classics and encyclopedias. HTML only.
7. Berkely SunSite Classics – A small collection of classics. HTML only.
8. Bibliomania – Over 2,000 classic novels, study guides, biographies and more. HTML only.
9. BookRags – Small collection of free with many paid. Hard to find the free ones. Available in Word or PDF.
10. BookYards – 16,000+ books, videos, educational material.
11. DailyLit – Read books online by daily email or RSS feed. Over 700 titles.
12. Diesel eBooks – Offers 750+ ebooks formatted for Microsoft Reader and MobiPocket
13 eLibrary – Thousand of free eBooks
14. eServer – Over 30,000 works covering a variety of interests
15. FeedBooks – Thousand of eBooks downloadable in a variety of formats
16. Franklin – Thousands of free titles available in text and HTML format
17. FreeBookSpot – 5,000 free eBooks downloadable in 96 categories
18. FreeComputer Books – Free computer, math, technical books and lecture notes
19. Free eBooks – Smaller collection divided into categories
20. Free eBooks Net – Free books and resources for authors. Also magazines
21. FreeTechBooks – Computer science and programming books, textbooks and lecture notes.
22. FullBooks – Thousand of free full text books.
23. GetFreeEbooks – Smaller collection of all free ebooks.
24. Globusz – A place for new authors to post their work and for readers to check them out for free.
25. Google Book Search – Good selection of free ebooks available in a variety of categories.
26. GrtBooks – A large collection of great books and classics.
27. Gutenberg – Over 25,000 books for download there and over 100,000 available through their affiliates.
28. Infomotions – 14,000 listings from full classic novels to Western philosophy. HTML only.
29. InternetArchive – Over 500,000 texts available for download
30. ManyBooks – 22,000 books available for download in a variety of formats
31. Mary Jo’s E Texts – Small collection has not been updated in a while, but links still work. Palm.
32. MemoWare – Free books for PDA
33. MIT Internet Classics Archive – Over 400 works of clasical literature available for download.
34. MobileRead – Forum listing thousands of free ebooks.
35. Munsey’s – Over 18,000 ebooks available in a variety of formats
36. NetLibrary – Small selection of free. But annual membership is only $8.95 for over 500,000 works.
37. OnlineComputerBooks – Good selection of free computer books.
38. OnlineFreeeBooks – links to various ebooks (mostly pdf) in 9 categories
39. OxfordTextArchive – Over 2,000 classical texts downloadable as ASCII or DOC
40. PDFBooks – 4,700 pdf ebooks
41. PerseusDigitalLibrary – A large collection of classical texts broken down to time period written.
42. PlaneteBook – Free classical literature
43. PlanetPDFeBooks – Small collection of classical works.
44. ReadEasily – Small collection of works that has option for larger print. HTML only.
45. ReadPrint – Thousands of books, poems and short stories.
46. RealTime – Free media for IT professionals
47. Scribd – Open library to download or publish documents.
48. SnipFiles – Small collection of free ebooks and software.
49. WitGuides – Small collection of free ebooks in a variety of categories.
50. Wowio – Good size collection of novels and also comic books.
vía http://www.techsupportalert.com/content/50-places-free-books-online.htm