A Small Cluster of Experts
   A group of AIX Systems Administrators dedicated to bringing users and professionals together to exchange knowledge and ideas.
   http://www.aixadm.org/

CIAC Security Website
   CIAC provides leading edge cyber security solutions for the nation. Through its strategic alliances, CIAC is the recognized focal point for the DOE/NNSA and other national stakeholders. CIAC responds quickly with personalized solutions employing our trust
   http://ciac.llnl.gov/ciac/

Decatrend Technologies
   Offer software development, product engineering, and IT enabled services.
   http://www.decatrend.com/

FIRST Team Contact Information
   This is a list of the contact information for incident response teams participating in FIRST, the Forum of Incident Response and Security Teams. The teams are responsible for providing FIRST with their latest contact information for this page. The list is
   http://www.first.org/members/teams/

Infrastructures.Org
   Infrastructure Architecture and Automated Systems Administration; techniques, tools, and community.
   http://Infrastructures.Org

Inside Informatics Ry Unix/Windows Expert Association
   Inside Informatics Ry is an association with members from Unix administration to Windows software development. All hardware platforms from Macintosh to Sun are represented.
   http://www.inside.org

SAGE
   The System Administrators Guild is a special technical group of the USENIX Association
   http://www.usenix.org/sage/

USENIX Association
   The Advanced Computing Systems Professional and Technical Association
   http://www.usenix.org/

dc.sage
   Professional and social organization for systems administrators in the greater Washington DC metropolitan area.
   http://www.dc-sage.org/