some good sites

http://www.avaxhome.ru/ebooks

http://innoebook.blogspot.com/

http://sharingebooks.blogspot.com/

http://online-books-reference-index.blogspot.com/

http://free-ebooks-info.blogspot.com/

linkgrabber.blogspot.com

electronix.ru

http://www.updatesofts.com/forums/forumdisplay.php?f=23

http://vebook.org/

http://rapidinfo.blogspot.com/

http://mohand.es/

http://dvd4arab.com/

http://gbook.frogga.net/

http://www.ce4arab.com/

http://university.arabsbook.com/

http://mymails.blogspot.com/

http://ebooks4all.wordpress.com/

http://shahidzain.blogspot.com/

http://enggresource.blogspot.com/

http://knowfree.net/category/engineering

http://atryna.blogspot.com/

http://www.downloadreactor.com/

http://www.nr1share.com/category/e-book

http://www.ebook6.com

http://www.arab-eng.org/

http://groups.google.co.zw/

http://ebookhere.blogspot.com/

http://vaiduakhu.wordpress.com/

http://www.elektrotekno.com/

http://cooldogebooks.blogspot.com/