I've read the 'Shellcoder's Handbook' as well as 'The Art of Exploitation', and appreciated both a lot. Now I'm looking for additional resources delving into vulnerability spotting, code auditing, and maybe fuzzing. Any recommendation for a book or must-read online resources of great interest?
The web application hackers handbook is good book in web applications security and it is exploits .
A Bug Hunter's Diary: A Guided Tour Through the Wilds of Software Security this is also very good I didn't complete it though.
Also OWASP/WASC guides are too good for Vulnerability Detection and Testing .
and Google is your best friend always.