UX organisations

IxDA – The Interaction Design Association
http://www.ixda.org/

IAI – The Information Architecture Institute
http://www.iainstitute.org/

UIE – User Interface Engineering
http://www.uie.com/

The Usability Professionals’ Association
http://www.upassoc.org/

The Usability Professionals’ Association UK Chapter
http://www.ukupa.org.uk/

AIGA
http://www.aiga.org/

Human Factors and Ergonomics Society
http://www.hfes.org/

Human Factors
http://www.humanfactors.com/

ASIS&T – American Society for Information Science and Technology
http://www.asis.org/

Association for Computing Machinery
http://www.acm.org/

Special Interest Group (SIGCHI) regarding Computer Human Interaction exists within the ACM at: http://www.acm.org/sigchi/

Argus Center for Information Architecture
http://argus-acia.com/