These are some links to resources that I find valuable broken by category.


Pen-testing and Security

http://www.offensive-security.com/

http://www.backtrack-linux.org/

http://www.social-engineer.org/

http://www.metasploit.com/

http://www.attackresearch.com/

http://www.overthewire.org/wargames/

http://smashthestack.org/

http://g0tmi1k.blogspot.com/

Programming

If you’re looking for some good starter classes to learn programming, or simply need a refresher, I recommend Google’s introduction classes to Python and C++: http://code.google.com/edu/languages/index.html

That’s a start…I’ll try to add more links as time goes by, but remember that Google is always helpful.