Google Dewey Update?

Like so many other SEOs, I have noticed some changes in the SERP since yesterday on Google.ca, but not as significant as many others have claimed. A few keywords that dropped rankings since the last “#6 Penalty” bounced back to their original positions, along with some odd pages that I’ve never seen before.

The term “Dewey Update” has quickly been coined for this update in the SEO community, as Matt Cutts came out and asked webmasters for feedbacks about SERP shakeup in the WebmasterWorld forum and asked for the term “Dewey” to be included in the form.

This is what Matt said in his original post in the thread:

“Hey all, I asked a few people to look into this and they weren’t seeing many large differences in rankings between these datacenters. The issue with discussing on this thread is that specific urls/queries aren’t allowed. If anyone wants to mention a search where they see large-scale differences, feel free to send feedback to Google in the usual way. I’m going to pick a random-but-pretty-unique keyword so that I can look up reports. Let’s use “dewey” as the word. So if you want to mention a search where you think the results are very different at one data center compared to other data centers, use the spam report form at http://www.google.com/contact/spamreport.html and make sure to include the word “dewey” in the “Additional details” text area. Or feel free to point out differences in other ways: do a blog post, leave specifics on the Google webmaster help group, or whatever way you want to point out specific searches that look different to you.