I've been following the #pubcon conversation with interest, and here is the official announcement :). All I can say... look here. Thanks to Matt and Anindo of Google for their help on this!

Matt Cutts has just announced a new tag at SMX West Google, Yahoo and Microsoft have just announced a new tag, which we can use to tell the search engines which URL it should have for the current page. This is probably best explained with an example, so here goes.
Suppose you have read my Twitter

This morning, while discussing some issues with one of my German SEO colleagues, I was searching for [flug amsterdam] in google.de (if you know me you guess which client that was for). At the bottom of the SERP, I saw this:

Basically, this is Google offering me, the user, to translate the search term into english.

Dave pointed out last week that 302 spam is far from gone. Wiep pointed me at another form of spam that's far from gone, combined with 302 spam. If you search for "hypotheekoffers" and flip to page 2, you'll see a whole lot of subdomain spam. These subdomains 302 redirect to one domain, resulting in

A friend emailed me this morning, saying he saw a lot more site links reported in Google Webmaster Tools for sites that had not before had site links. When I went to check I saw a lot of my sites, amongst which this one, showing site links too. I can't get them to show up

Well, it might offer some cool data, but it also shows me that whatever Google does, they don't adhere to the robots standard. Check this:

Well, yes, these pages do have duplicate title tags. But they have something else as well:
[code language="html"]

[/code]
Perhaps, Google, instead of working on these nice webmaster tools, you should start honoring simple

Now that Google has been so nice as to decrease PageRank for at least a portion of the sites they have identified as selling links, PageRank, and more importanly historical PageRank data, has become very valuable linkbuilding data.
If you know that a site has decreased in visible PageRank, are you going to buy a link

GMail seems to be getting IMAP support:

It's not enabled for me yet, but once it becomes available, I think I'll switch to that instead of my regular IMAP.

Looking in my Google Webmaster Tools in the "Unreachable URL's" section, I found this (click to see bigger one):

So let me get this straight, they couldn't reach the page, because it gave a normal HTTP 200 Success code? Seems like a bug to me...

I'm talking about the Dutch SERPs at the moment. Google has been getting better and better at recognizing synonyms, plurals and singles etc in Dutch, and a few other European languages too. This caused a problem though, because suddenly, all our "startpagina's", pages full of links on a particular subject, had their keyword density doubled