Soupy’s TAFE Tidbits

The IA has different types of structures: All-in-one, Flat, Index, Daisy, Strict hierarchy, Multi-dimensional hierarchy & Search. Web pages can be defined under several of these.

There is no right way of arranging content. The aim of marketing the site to the user and common sense underlines how the content is laid out.
A good article about IA is Web Design From Scratch

Examples:

All-in-one
- Hard to find one these days
Flat
- golflink.com, neopets.com

Index
- digg.com, ebay, usbugcafe.com
Daisy
- hotmail
Strict hierarchy
- hoyts.com, games.ii.net

Multi-dimensional hierarchy
- LiveJournal, amazon
Search
- Google, AskJeeves, Yahoo, Wombat, Sensis, AskTed, Wikipedia