M. e-Books
- Bartleby: Geart Books Online ( http://www.bartleby.com/ )
- Digital Book Index (http://www.digitalbookindex.org/search001a.htm)
- Free Tech Books (http://www.freetechbooks.com/ )
- Google Book Search (http://books.google.com/ )
- Medical Books (http://www.freebooks4doctors.com )
- FreePDFeBooksArchive : http://www.planetpdf.com/free_pdf_ebooks.asp?CurrentPage=1
- Project Gutenberg (http://promo.net/pg/
- Read Print http://www.readprint.com/
- WikiBooks :http://en.wikibooks.org/wiki/Main_Page
- Agricultural free e-books : http://nsdl.niscair.res.in/
- ACM Digital Library : http://portal.acm.org/dl.cfm