Computerworld's Security Knowledge Center - Provides breaking news articles, features, analysis and commentary on issues of interest to IT professionals. Among the topics included are corporate network security, cybercrime, firewalls, privacy, security holes, viruses and worms.

hakin9.org - a magazine about hacking and IT security, covering techniques of breaking into computer systems, defence and protection methods.

Security Forums - Security portal and forums covering operating system and network security through to troubleshooting and vulnerabilities.

Astalavista.com - The internet's underground security portal provides daily security downloads, meta search engine, security news, security newsletter, and much more.

Hack in the Box - Designed to facilitate discussions on security related topics, create security awareness, and to provide a comprehensive database of security knowledge and resources to the public. The site provides access to security links and resources, including news, books, mailing lists, tools, products and security services as well.

Xatrix Security - Daily updated computer security news portal featuring the latest IT Security related news with a large database of security advisories from various Vendors. Security Advisories are integrated with a browsable CVE database.

Invulnerableit.com - An open informational community for IT security enthusiasts, featuring independent research, news, commentary, forums, and feeds.

ITinfosecure.com - Created for IT professionals, ITinfosecure.com provides an unbiased directory listing of IT security products and services helping users save valuable time when doing product research.

ProcessLibrary.com - The free process search engine. Using this resource you can find out what every process on your system is doing.

Experts-exchange.com - Thousands of experts answer technical questions, which are posted on site by subject area. Focus is on computer security queries.

McAfee Security - Virus Information Library - Detailed information on viruses, with updates on the latest threats, how to remove them and other virus related info.

GFISecurityLabs - GFISecurityLabs is the in-house security research division of GFI. It has developed several free security services including EmailSecurityTest & EventLogScan and features security news & whitepapers.

Wilders.org - The ultimate security website. Reviews, (free) tools and services, and more, as well as free support.

AntiVirus-Report - Virus information and more. Viruses, trojans, and worms explained, Symantec, Mcafee and others compared.  Get the antivirus report and be informed about viruses and antivirus software, and trojan and adware removers.

eBCVG.com - Security portal and forums covering operating system and network security through to troubleshooting and vulnerabilities.

Basicsec.org - Computer Security For the Home and Small Office - A comprehensive guide to system hardening, malware protection, online anonymity, encryption, and data hygiene for Windows and Linux, written for everyday users.

Privacy Policy - How to write a good privacy policy.

NoticeBored - An innovative security awareness service delivering fresh awareness materials on a different topic each month.

JFinfosecurity.com - Provides the most complete information security resources such as news, links, tools, and threats condition reports for all audiences.

AuditMyPC - Free online firewall testing UDP and TCP.

GovernmentSecurity.org - Computer and network security articles and hacking prevention resources for the government.

CriticalSecurity.com - Provides a free security planning template, security tools, and links; home of the book Mission Critical Security Planner.

Cgisecurity.com - Dedicated to providing information on secure web development, web and application server security, database security, web application penetration testing, vulnerability news, and more. 

Networksecuritytech.com - The Network Security Technology program at TSTC offers the intense, hands-on instruction needed to combat today's hackers. With courses covering the physical and logical aspects of security, the NST program takes a proactive stance against network threats and helps students develop the skills needed to prevent intrusions.

Firewall.cx - Contains information on basic/advanced networking concepts, Protocols (IP, DNS, FTP, ICMP etc.), Routing protocols, Ethernet, Routers, Firewalls, DMZ, Security, Subnetting, Supernetting, special sections with networking software, documents and projects for you to download from.

SearchSecurity.com - A search engine/portal for IT professionals focused on Security. It includes search capabilities, editorial insight, summaries, daily industry news, and weekly technology tips delivered via email.

Trivia Security - Dedicated in providing the latest security headlines, exploits & codes, live security war games, general computing, programming, web-development, phreaking info, downloads, tutorials, articles, virus info, tools, free proxies and a lot more.

Calendar of Updates - The Calendar of Updates security portal is dedicated to tracking the latest developments for protective updates as well as evolving threats. We are dedicated to providing timely and quality information to our user community through a volunteer network of highly experienced IT professionals.

SecurityD2D.com - Funded by Microsoft, this site has Microsoft centric Security content including server admin tips, mentored security discussions, links to numerous Microsoft resources, and more.