Information Architecture Essentials
http://www.uie.com/brainsparks/2009/10/06/spoolcast-information-architecture-essentials/

Spool, Jared M. and Donna Spencer
User Interface Engineering
2009

Abstract:

What happens when, one day, you’re asked into the boss’s office and they drop “the web site” and “information architecture” into your lap? Regardless of your experience, where do you begin? Donna says your first question should be, “Why do we bother to have a web site in the first place?” “What’s its purpose?” She says if you don’t get this out of the way first, you’ll run up against it when you’re further along the trail and it won’t be easy to deal with.