Google Page Rank

It's quite interesting (for me) that Google's Page Rank has updated today - after a gap of almost 6 months. What makes this update interesting, apart from the fact that I've had a few sites suffer go down, is that because of this blog, it's the first time that I've had new pages added daily that I can use to see how Google has tracked the page ranks.

And I record this as much out of interest and to compare to in the future as I do for a study into Google Page Rank. If you notice anything from my results or learn anything, don't keep it to yourself - post a comment!

First,the blog home page has gone straight in at Page Rank 3. Excellent! Only 2 sites link to it - my own and brit blog.

None of the pages added to this blog in the last 7 days have a Google Page Rank - all are grey bared. Pretty much to be expected.

All pages added in the previous days (3/10 to 20/10) have a Google page rank of 0. This means that Google has taken into account all pages it new about up to and including 7 days ago.

Pages prior to from 2/10 and earlier have a page rank of 1. This must mean that Google has given them some credit for existing some time back. Maybe it indicates that the previous actual update of Page Rank happened around this time - the toolbar page rank is just what is exported on an adhoc basis. This would mean that either the 2 to 3 weeks means the pages have counted as aged more, or (and I prefer this theory) that Google is updating Page Rank about every 2 to 3 weeks.

Lastly, for some reason the August posts are grey bared. This is probably because the blog was just starting up and were quickly archived, before Google had a real chance to take an interest in the pages.

It's also interesting to note that 2 of the experimental blogs are now page rank 0 (as opposed to grey barred).

These are (of course) those 2 that are linked to. The one with the 'clean' links is PR0 on home page and pages up to 20/10 (1 unexplained exception). The one with target="_blank" is PR0 on the home page, grey bared on the rest.

But another similar (and slightly older) test blog remains grey bared, even with links from 1 site that aren't using the target function. Another blog, again with 2 sites linking to it, starts with a PR0 (it's brand new - links from the last week or so.). Looks like there's a big difference to explain there...

I'm sure this is one post I'll be referring to in the future - to compare how page ranks change!