"Free usability advice" is an unusual offer from this blog by Expero Inc. They publish a weekly question someone has sent them, with their suggested answer. I liked their pragmatic approach to the "3-click rule" (i.e. the idea that every page on a site should be reachable in 3 clicks). They suggest that 3 clicks is a bit meaningless (and impractical if you have a big site); what matters is, can users get where they want to go?
"Making pages accessible within 3 clicks has no inherent value as a metric to the users of a site or to your business goals. What might matter, though, is efficiency (how quickly users can complete their tasks) or how easily users can find what they need. Do users have to call tech support or use other resources that cost the company money to find the information they need?
In a wonderful paper called Designing for the Scent of Information, User Interface Engineering notes that what users do expect is that every click makes them more confident they’re on the right trail to get to the information they need. As long as users are confident they’re heading in the right direction, then they are not likely to abandon the site if it takes a click or two more to get where they’re going."
(from The 3-click rule)
Sounds sensible to me.