Information design and architecture organizations
The links in this list of websites of related professional organizations were validated in 2005. If you have an update or an addition, please leave a comment.
AIGA, the professional association for design (formerly American Institute of Graphic Arts)
American Society for Information Science and Technology SIG IA. There are affiliated local groups in information architecture such as http://www.dc-ia.com
Communication Research Institute of Australia
Information Design Association (UK)
International Association of Business Communicators
International Institute for Information Design
Human Factors and Ergonomics Society
Professional Communication Society, IEEE
STC SIGs, including AccessAbility and Usability and User Experience. A list of links to all the SIG websites is on the STC Forum.