This morning when I came in to work I saw this RLRouse headline in WebProWorld: Another Google update has begun...
I immediately began scouring forums and calling experts to find out more information.
First I called Google-hawk Daniel Brandt, who noted that some of his Scroogle pages have pagerank now for the first time. He also mentioned a way to see how the page ranks have changed if you look in different datacenters. He's heard of some people with more backlinks now, and some with less.
How did you fare?
Checking backlink and pagerank changes. For a full and too-techie-for-me description of how to check updates on backlinks and pagerank, look at RLRouse's datacenter post.
Update Rumblings Webwide. Mr. Brandt pointed me to SEOChat, where I found some welcoming and informed folks and a post entitled What's up: -gv and -va OFFLINE, Update coming?" I learned that when an update's coming Google usually takes down some datacenters. At the time of the post, the www-gv.google.com and www-va.google.com datacenters were down.
More coming as I find it.