HoneyNet Project
Group of security professionals dedicated to learning the tools, tactics, and motives of the blackhat community and sharing those lessons learned.
www.honeynet.org
Hacker's Defense Fund, The
Assists those accused of computer and related crimes find lawyers to defend them in court. We do not support or condone illegal activities.
www.hackerz.org
2600 Australia
Includes mailing lists and meeting information.
www.2600.org.au
Irvine Underground
Organization of computer experts who meet to discuss underground-related topics such as hacking, phreaking, and security.
www.irvineunderground.org