Here is the list of e-books providers collected from different websites,wikipedia etc..Students can use these for reference.

• Project Gutenburg
• Digital Library of America
• Open Llibrary
• amazon free kindle e-books
• Internet archieve
• Many Books
• Book boon
• Library Genesis
• Free book spot
• free e books
• e-book bike
• issuu
• Librivox
• get free e books
• free computer books
• baen
• Books Pics
• freetechbooks
• Know Free
• Open Culture
• onlineprogrammingbooks
• leanpub
• feedbooks
• The Online Books Page
• ebooklobby
• myanonamouse
• oreilly