Free E-book Resources

When we were reviewing 10 of the best online resources for free books, we had a LOT of readers chime in with their own favorites as well.  Thank you for all your helpful contributions!
In fact, we had so many suggestions, we have enough to compile a huge list from them, so here they are in no particular order:

1. ManyBooks – Free eBooks for your PDA, iPod, or eBook reader
2. BookCrossing – Where real books are released into the wild to be found by other.
3. LibraryElf – The perfect companion to a public library syste
4. Scribd – Open library to publish and discover documents online
5. Word Public Library – 400,000 PDF ebooks for download
6. Free Tech Books – Free computer science and engineering books (+ lecture notes)
7. Bookins – Swap real books with other readers
8. WellToldTales – Free short story podcasts (like audiobooks, but shorter)
9. Wowio – Public domain, free legitimate copyrighted materials & one of the only with a selection of Comic Books
10. BizBooktalk – Free book giveaway contests on Fridays
11. MoochMuch – Organize your book lending with your friends
    
12. CHMPDF – A collection of general interest and technical ebooks
    
13. Realtime Publishers – free IT eBooks by many of the world’s best authors
14. FrugalReader – Trade Books for free – Thanks Brent
    
15. TitleTrader – Swap books, movies, and music – Thanks Brent
    
16. ZunaFish – Trade your old media and books items for new titles you’d rather have – Thanks Brent
    
17. SwapSimple – Swap your used books here
    
18. SwapThing – Community of users who swap items including books
    
19. BookCart – Internet paperback exchange
    
20. SF-Books – Exchange Sci-Fi Books here
    
21. PaperbackSwap – Swap books for free
    
22. PinkMonkey - 450 Study Guides / Booknotes / Online Chapter Summary Notes and Analysis
23. eBookWorld – Technical resources
24. Flaxx – IT and computer books
25. Baen Library – Free science fiction and fantasy novels
26. LibraryThing – Social networking and free books
27. Online Books Page – Facilitates access to books that are freely readable over the Internet 
28. Podiobooks – free audiobooks that you can subscribe to with iTunes or any other podcatcher
    
29. BookRags – Research material in the form of eBooks
30. Technical Books Online – Old tech books from the "vacuum tube age" of electronics
    
31. ebookSearchr – Google powered Thanks Rico & Rokker
    
32. Internet Archive – The Intenet indexed – that includes a vast text library
33. BookYards – Books, videos, education materials
34. Memoware – Free books for your PDA
35. DocStoc – online document sharing website. the "YouTube of documents"

The items below were taken from my original Top 10 list with full reviews 

1. Gutenberg Project Top 100 – Popular books from the oldest producer of free ebooks on the Internet
   
2. BookMooch - Community for exchanging used books
   
3. ebookSpyder – Specializes in technical books ranging anywhere from C# to AJAX
   
4. Google Book Search – Read the classics online
   
5. Dwalin – plain text novels
   
6. Free Computer Books – Technical resources about computers
   
7. Librivox – Audio works and podcasts of books
   
8. CliffsNotes – Get the notes to cram for the exam
   
9. WIkibooks – Free textbooks
   
10. DailyLit – Receive small parts of books via email