How to find security holes
   Short primer originally written for the Linux Security Audit project.
   http://www.canonical.org/~kragen/security-holes.html

Ronald L. Rivest's Cryptography and Security
   Provides links to cryptography and security sites.
   http://theory.lcs.mit.edu/~rivest/crypto-security.html

SANS Institute - The Internet Guide To Popular Resources On Computer Security
   Combination FAQ and library providing answers to common information requests about computer security.
   http://www.sans.org/resources/popular.php

Technical Info
   Provides plain language technical papers on security and securing organizations.
   http://www.technicalinfo.net

Tek-Tips
   General computer security technical support forums. Selling and recruiting forbidden.
   http://www.tek-tips.com/threadminder.cfm?pid=83

The Encyclopedia of Computer Security
   A complete one-source location for information security news, products, whitepapers, events, and definitions requires the use of JavaScript for navigation and display purposes.
   http://www.itsecurity.com/

The Ethical Hacker Network
   Educational resource on penetration testing and incident response.
   http://www.ethicalhacker.net/

comp.security Newsgroup FAQs
   Security related FAQ covering a variety of subjects.
   http://www.faqs.org/faqs/by-newsgroup/comp/comp.security.html