this is a fttp link of books 

Code:

ftp://ftp.uar.net/pub/e-books/

this is a blog full of books

Code:

http://www.freegoodbooks.blogspot.co...oks-index.html

another of the book sites

Code:

http://giuciao.altervista.org/free_books.html

a mother link to all book sites

Code:

http://ebookslink.50g.com/

another of the book sites

Code:

http://books.rackhub.com/

All these sites contain lots of comp sc and IT books which are downloadable 

plz post ur replies .