Peter Morville’s latest article looks at Information Architecture 3.0 in the light of Web 2.0.

His core message is pretty simple: information architecture is relevant to the Web 2.0 world:

Of course, user hostile web sites are only the tip of the iceberg. Beneath the surface lurk multitudes of Web 2.0 startups and Ajaxian mashups that are way behind schedule and horribly over budget. Apparently, nobody told the entrepreneurs about the step change in design and development cost between pages and applications.

But, that’s enough gloom and doom, as the future’s quite bright, especially for information architects who find ways to connect the timeless principles of design and organization with new transmedia models of interaction, co-creation, tagging, and user participation.

Along the way, he talks about information architecture naysayers, the relationship of the discipline to its practitioners and larger community, how it fits (or doesn’t) with interaction design, and paths IA might take forward.

Whether you love information architecture or can’t wait to attend its funeral, it’s an article worth considering if you’re building anything complex. I’d love to see a followup on how IA 3.0 works out, and how its relationship with Web 2.0 (or 3.0, or x.0) develops.

(I had the pleasure of working with Peter as his editor on both Information Architecture, 3rd Edition and Ambient Findability.)