Nice recommendation tptacek. Also nice is the book by the author of the same software: http://www.amazon.com/The-Web-Application-Hackers-Handbook/d...

I have been keeping a list of books I used to augment my CS Masters Degree courses on various topics, here are the relevant ones I have found useful for the topics you have listed:

--Computer Organization--:

Computer Systems: A Programmer's Perspective http://www.amazon.com/Computer-Systems-Programmers-Randal-Br...

I liked this much better than Computer Organization and Design by Patterson and Hennessy which everyone has encountered at some point. The developer-centric view was very cool.

--Computer Security--:

Kernel Exploitation: Attacking the Core http://www.amazon.com/Guide-Kernel-Exploitation-Attacking-Co...

Most 'hacking' books are goofy. This one is very good and doubles nicely as a hackers operating systems text.

Web Application Hackers Handbook http://www.amazon.com/Web-Application-Hackers-Handbook-Disco...

Very nice overview for web concerns.

--Operating Systems-:

Operating System Design and Implementation http://www.amazon.com/Operating-Systems-Design-Implementatio...

I don't agree with Tanenbaum's views on micro vs. monolithic kernels but this book is a great mix of theory and implementation.

Linux Kernel Devleopment http://www.amazon.com/Linux-Kernel-Development-Robert-Love/d...

I used this to get a feel for the monolithic implementations of topics covered by Tanenbaum.

--Networking--:

TCP/IP Illustrated Series. More than you would ever want to know.

The Web Application Hacker's Handbook is most widely cited in a more general sense. I'm reading it myself at the moment - http://www.amazon.com/Web-Application-Hackers-Handbook-Disco...

http://www.amazon.com/Web-Application-Hackers-Handbook-Disco...

Awesome book covers EVERYTHING with practical instructions + a comprehensive checklist.