[Hany Freedom]

I konw good way to hack this site :-
http://www.pdfchm.com/
after you sign up in this site .... write this sentence in the address bar of your browser :-
http://www.google.com.my/search?sitesearch=pdfchm.com&q=oracle

if you observed that I wrote in the end oracle clause , and that's mean I will get all results that give me books in the Oracle field ....... you just right the same sentence and replace the end word by any word else that you want like :-
http://www.google.com.my/search?sitesearch=pdfchm.com&q=windows

I think this site specialized in computer books ...... but you will see also another books in it , in another fields .

enjoy it

Regards