Today, there are hundreds of hacking/security related blogs out there. Out of those, only a select few end up being updated regularly with good content. I am currently subscribed to a few and so should you. Hey that rhymes! Here’s the list in no specific order.
www.darknet.org.uk – darknet is mainly about exposing the latest and greatest security tools.
www.ha.ckers.org – ha.ckers.org is a great blog mainly about web application security.
www.schneier.com – run by security guru Bruce Schneier and covers all aspects of security from physical to electronic.
blogs.hackerscenter.com – informative security blog that is contributed to by multiple people of great intelligence.
www.gnucitizen.com – educates and shares information on best practices, tools and techniques of security.
www.astalavista.com – contains many interesting interviews.
www.securiteam.com – security professionals share their thoughts, musings, information, research, and news