Found a new reference jjg.net: information architecture resources.

What a great collection of resources! I'm gonna be a long time combing through these...

Of particular help is the collection of links to Information Architects trying to define the field. good luck! I have often thought that pure information architecture is categorization and labeling...everything else we do is interaction design, or interface design or usability. In a way I think the Information Architect is like the webmaster of old, doing what needs to be done, whether it was in the job description or not.