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Information Security   
Cryptography Books Unix/Linux Security Books
Security Technology & Design Java Security Books
The Five Myths of Web Application Security Firewalls & VPN's: Firewalls Complete
Open Source Security Tools: Pratical Applications for Security (Tony Howlett)
Introduction to Computer, Internet and Network Systems Security (PDF Format)
Handbook of Information Security Management (M. Krause, H. F. Tipton) [Mirror] [Mirror] [Mirror]
The Protection of Information in Computer Systems (J.H. Saltzer and M.D. Schroeder)
A Guide to Public Key Infrastructures (PKI) and Open–Source Implementations
Maximum Security: A Hackers' Guide IT Security Cookbook (Sean Boran)
Intrusion Detection Systems (IDS) with Snort: Advanced IDS with Snort, Apache, MySQL, PHP, and ACID [Mirror]
O'Reilly® Security Books Chapters Security in Open Systems
Building Secure ASP.NET Applications: Authentication, Authorization, and Secure Communication
Windows 2003/2000/XP Security Architecture Overview
The .NET Developer's Guide to Windows Security (K. Brown) Enterprise Security Guide
Building Internet Firewalls (D.B, Chapman & E.D. Zwicky) [Mirror] [Mirror] [Mirror] [Mirror] [Mirror] [Mirror]