Does anyone know if Google has changed it algorythm in the past few days?

Yeah, that's what it seems to be, it was a blog too that alerted me so maybe its something to do with that. All ok again now - thanks!

On 12:17:56 23 January 2007 rbarbs wrote:

Hi,

I have certainly noticed some changes, in particular Google has been having problems with UK .com sites.  I noticed it with one I work on and then saw someone else had the same issue on www.mattcutts.com/blog it appears to have now been fixed, so if you have seen your site go up and down it could be related to that. 
Kind regards,
Richard

On 10:33:30 23 January 2007 JustineW wrote:

Does anyone know if Google has changed it algorythm in the past few days?

This has been happening since Tuesday last week (16th). We are on the final hurdle now and for some it will of already settled down.

To check the progress of the Dance check your requests in the following data centres.

Domain IP-Adresses

• www-ex.google.com 216.239.33.100
• www-sj.google.com 216.239.35.100
• www-va.google.com 216.239.37.100
• www-dc.google.com 216.239.39.100
• www-ab.google.com 216.239.51.100
• www-in.google.com 216.239.53.100
• www-zu.google.com 216.239.55.100
• www-cw.google.com 216.239.57.100
• www-fi.google.com 216.239.41.100
• www-gv.google.com 216.239.59.100
• www-kr.google.com 66.102.11.100
• www-mc.google.com 66.102.7.100
• www-lm.google.com 66.102.9.100

During the Google Dance, the data centers do not receive the new index at the same time. In fact, the new index is transferred to one data center after the other.

The beginning of a Google Dance can always be watched at the test domains www2.google.com and www3.google.com. Before the Google Dance begins, at least one of the test domains is assigned the IP address of the data center that receives the new index first.

Max

On 15:33:57 23 January 2007 DavidReilly1 wrote:

Justine,

Yeh it appears that we are in the middle of a new page rank update,

we've been noticing sites which have had their PR stripped for a few days and

some ranking placements bouncing up and down

The top sites seem relatively stable however, just seems the rankings maybe 20

downwards are bouncing off the walls at the moment

David

hi, Justine, how are you?

I just wanted to post to point out that there are a few bits of outdated/mythical information in this thread. The best source of information for things along these lines is Matt Cutts, the guy in charge of Google's Web Spam team:

Here's a post he put out about a month ago explaining that the 'Google Dance' is more-or-less an outdated concept:

http://www.mattcutts.com/blog/explaining-algorithm-updates-and-data-refreshes/

Here's a post from a year earlier defining an 'update':

http://www.mattcutts.com/blog/whats-an-update/

And here's a video he put together explaining the difference between an 'index update' an 'algorithm update' & a 'data refresh'.

http://video.google.com/videoplay?docid=8475081922887713591

I hope that's of some use to you & clears up some of the myths & ambiguity!

daniel