ITSecurity

IT certifications

1. CISSP - Certified Information Services Security Professional

2. OSSTMM - OPSA

3. ITIL

IT Security info

1. ISC2 blog

2. The Hacker's RFC

IT security tools

1. Helix - a live Linux distribution oriented to Computer Forensics

2. BackTrack

3. Brutus

4. HammerOfGod tools

5. PHPIDS

6. OpenVAS - a Nessus fork

7. Zenmap

8. OpenWRT + Snort

9. WebScarab

10. Darik's Boot And Nuke - Hard drive disk wipe

IT security & networking sites

1. FOSDEM - Free and Open Source Software Developers' European Meeting

2. PacketStorm

3. OWASP

4. Sleuthkit

5. The Hacker Webzine

6. irongeek.com

7. Open Source Software Security

8. Security Compass

9. Hacking videos

10. InfoSecWriters

11. NIST CSRC Special Publications (800 Series)

12. Emerging Threats

13. PacketLife

14. CiscoBlog

15. DefCon

16. Hakin9

17. Cheat sheets

18. Informative Information for the Uninformed

19. Vyatta - open source networking

20. Milw0rm

Commands and scripts

1. Scripts