If ossankara wanted the ebook for Ethical hacking then there are books called "Ethical hacking" or "Hacking Exposed" etc. Unfortunately I do not have a pdf of these books and I am also on the look out for the same.
But if ossankara is on the look out for hacking then talk2sp is right. I do not think this site is to groom would be hackers ...
Ethical hacking, for the purposes of improving the security of your own systems and networks is not a problem. Neither is discussion of security issues with a view to fixing them. Hacking for hacking's sake however is something this site will never assist, promote or encourage.
However we're falling into the trap here of deciding what a contributor means before he/she has properly expressed it. What is it you'd like to discuss, ossankara, and why?