North Texas Chapter ISSA 
The Dallas and Fort Worth chapter of the Information Systems Security Association (ISSA).
http://issa-northtexas.org/ISSA - International Systems Security Association
An international non-profit organization of information security professionals and practitioners. It provides education forums, publications and peer interaction opportunities.
http://www.issa.org/
First
Forum of Incident Response and Security Teams.
http://www.first.org/
IntoIT
The journal of the INTOSAI EDP Audit Committee. Its main focuses are on information systems auditing, IT performance auditing, and IT support for auditing.
http://www.nao.gov.uk/intosai/edp/index_to_intoit.htm
RCMP Technical Security Branch
Canadian organization dedicated to providing federal government clients with a full range of professional physical and information technology security services and police forces with high technology forensic services.
http://www.rcmp-grc.gc.ca/tsb/
The Shmoo Group
Privacy, crypto, and security tools and resources with daily news updates.
http://www.shmoo.com/
Switch-CERT
Swiss CERT-Team from the Swiss research network (Switch).
http://www.switch.ch/cert/
Information Systems Audit and Control Association
Worldwide association of IS professionals dedicated to the audit, control, and security of information systems. Offer CISA qualification and COBIT standards.
http://www.isaca.org/
Computer Security Institute
Organization for information, computer and network security professionals. Includes details of upcoming events and seminars and monthly newsletter for members.
http://www.gocsi.com/
Association for Information Security
Non-profit organization aiming to increase public awareness and facilitate collaboration among information security professionals worldwide. Offers security documents repository, training, news and joining information. Headquarters in Sofia, Bulgaria.
http://www.iseca.org/
Association for Automatic Identification and Mobility
Global trade association for the Automatic Identification and Data Capture (AIDC) industry, representing manufacturers, consultants, system integrators, and users involved in technologies that include barcode, RFID, card technologies, biometrics, RFDC, and their associated industries.
http://www.aimglobal.org
Forensic-computing.co.uk
Provides links to organisations involved in one or more aspects of forensic computing.
http://www.dcmt.cranfield.ac.uk/dois/cffc
