ITSecurity

IT Security certifications

1. CISSP - Certified Information Services Security Professional

2. OSSTMM - OPSA

IT Security info

1. ISC2 blog

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

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

Commands and scripts

1. Scripts