Ethical Hac !

http://www.softwaretrainingtutorials.com/hack-pen-test.php

http://an-ethical-hacker.blogspot.com/

http://www.go4expert.com/forums/showthread.php?s=572a12668577057dce2001baf1d83fbf&t=16514

http://www.hackersenigma.com/general/ethical-hacking-tutorials-hackersenigmacom/