Free E Books

 General E books

. http://www.freebookspot.es/Catalogue.aspx

 Free programming and computerbooks

http://4ebooks.org/

Academic Library

http://www.free-ebooks.net/ampersand/

Free Computer books

http://freecomputerbooks.com/

Physics books

http://www.physicsforfree.com/

Chemistry Books

http://www.freebookspot.es/TopTen.aspx?Category_ID=158

Biology Books

http://www.freebookspot.es/TopTen.aspx?Category_ID=91