3574 directories analyzed after the last Google PR Update

I have done in this weekend an analyze on the way the new Google PR update has affected the way the Google PR update is distributing. After the last update I suspect some big changes so I decided to analyze them.

I run the analyze on 3574 directories ( contained in Website Submitter ) and found the results quite amazing, a big downgrade on each level of PR distribution.

I have release all these details in a graphical form on an entry in my blog: How Google Page Rank update is affecting the directories?

 

Very weird that all the low PR sites went up and all the higher went down...

 

You cannot conclude this from Marius' graphs! The main trend that can be observed (see the line graph) is a general shift to a lower mean PageRank and a broader distribution (standard deviation) in the PageRank, something that is consistent with the ever-increasing number of directories and Google penalising quite a few of those.

 

Nice stats.

Some of the results seemed odd, especially the percentage of PR0 directories. I did a count of the 7100 directories on web-directories.ws. I came up with the following.

PR10 - 1
PR9 - 3
PR8 - 8
PR7 - 57
PR6 - 201
PR5 - 479
PR4 - 973
PR3 - 1699
PR2 - 1432
PR1 - 841
PR0 - 923
NA - 500

These numbers are as of Nov 11th, so many of the PR0 / NA directories are brand new in the last month.

I wonder if the fact that you are submitting the same site to 3500 directories is causing a lot of duplicate content, which is increasing the number of PR0 sites in your results.

 

Cool stats guys. Thanks for the work.

Also was surprised to see that the number of PR4's went down.

 

Nice analysis there, But the update of pagerank was really strange this time, So we will really have to wait now.

 

Good work ....

its a nice update...

 

Thanks for your hard work putting this graph report together..

 

Amazing work. Thanks