The way that Google handles canonization has, frankly, angered some in the SEO community for quite some time. I guess we can call it dramatic irony that GoogleGuy's own blog seems to be having some canonical issues.
From a WebmasterWorld supporters thread:
To me it definetly looks like Matts site is on the verge of a Canonical url problem.Ok - it depends on what datacenter you are accessing but if you do a domain.com search and a www.domain.com search Google now has these listed as seperate pages. Also on some DCs the domain.com search is now url only......
Also do a site:domain.com -www for Matts site.
We'll all have a good laugh if it gets hijacked. Meanwhile, I can't say this is a bad thing, especially if it prods Google to put more resources into solving this issue once and for all.

Comments:
Natasha Robinson
10/04/2005 02:35 pm
Good to see you here Andy... though I'm starting to think you've been cloned - since you're everywhere - lol You know, sometimes I wish that threads like the one above could be posted in a "Place Your Bets, Let's See if Search Engine's Figure This Out On Their Own" private forum. Natasha "that Girl From Marketing" Robinson
Andy H
10/04/2005 03:46 pm
>though I'm starting to think you've been cloned - since you're everywhere - lol Cloned? I wish!! Then I could make 100 web sites per day, rather than per year!