changes in Page Rank calculation algorithm

Material for thinking:

My main page at chembuddy.com is PR5 now.

It has 19 outgoing links. Some of them are rel=nofollowed,
to channel more PR to the pages I want to have higher PR.

One may expect that the pages linked to without restrictions
should be PR4, or at least PR3.

Some are. Some are not.

http://www.chembuddy.com/?left=BATE&...ion_equilibria
is one of those with much lower PR then expected. PR0 to be precise.
This page is also linked from some external sources, so I will expect
it to be over PR0 even without link from my main page.

Of about 100 pages on the site only 7 has PR above 0. After previous
PR update over 20 pages had PR reported as 2 or 3 (with main page PR
being 4).

Anybody else noticing similar things - other pages than the main
loosing PR after the last update?

No idea what it means, apart from the fact that random surfer is
no longer random. It is biased now.

Best,
Borek
--
http://www.chembuddy.com - chemical calculators for labs and education
BATE - program for pH calculations
CASC - Concentration and Solution Calculator
pH lectures - guide to hand pH calculation with examples

Borek wrote:

Material for thinking:

My main page at chembuddy.com is PR5 now.

It has 19 outgoing links. Some of them are rel=nofollowed,
to channel more PR to the pages I want to have higher PR.

One may expect that the pages linked to without restrictions
should be PR4, or at least PR3.

Some are. Some are not.

http://www.chembuddy.com/?left=BATE&...ion_equilibria
is one of those with much lower PR then expected. PR0 to be precise.
This page is also linked from some external sources, so I will expect
it to be over PR0 even without link from my main page.

Of about 100 pages on the site only 7 has PR above 0. After previous
PR update over 20 pages had PR reported as 2 or 3 (with main page PR
being 4).

Anybody else noticing similar things - other pages than the main
loosing PR after the last update?

I played with the tool mentioned by Roy and saw some large Danish sites
where the main page has PR5 or PR6, but subpages have PR0. I suspect
that PR0 may be an interim step between the reported "unranked" and the
actual ranking, meaning that PR0 could mean that the page is being
ranked, not that the actual ranking will be PR0. This is also condering
other examples of pages being reported as PR0 which end up high on the
SERPs, indicating that the PR0 is not the real ranking.

Mikkel

--
Guatemala travel, Spanish studies, volunteering:
http://lakjer.dk/mikkel/spanish.shtml

On Sat, 22 Oct 2005 13:24:06 +0200, Mikkel Moldrup-Lakjer
<mikkel (AT) fabel (DOT) dk> wrote:

other examples of pages being reported as PR0 which end up high on the
SERPs, indicating that the PR0 is not the real ranking.

You don't need high PR for high SERPs, that was discussed to death.

Best,
Borek
--
http://www.chembuddy.com - chemical calculators for labs and education
http://www.bpp.com.pl/?left=dysleksja&right=dysleksja

On Sat, 22 Oct 2005 13:14:59 +0200, Borek
<borek (AT) parts (DOT) bpp.to.com.remove.pl> wrote:

Anybody else noticing similar things - other pages than the main
loosing PR after the last update?

My index page is PR5 and I remember the main application page was PR5.
The application page is now PR4 but my index page is still PR5. I
don't know when the PR dropped because I don't check it very often. It
could have been after the last update. The pages that I've added
recently are PR0 but are attracting quite a lot of traffic.

--
Steve Wolstenholme Neural Planner Software

EasyNN-plus. The easy way to build neural networks.
http://www.easynn.com

Borek wrote:

On Sat, 22 Oct 2005 13:24:06 +0200, Mikkel Moldrup-Lakjer
mikkel (AT) fabel (DOT) dk> wrote:

other examples of pages being reported as PR0 which end up high on
the SERPs, indicating that the PR0 is not the real ranking.


You don't need high PR for high SERPs, that was discussed to death.

I know PR is just one factor among others.

Mikkel

--
Guatemala travel, Spanish studies, volunteering:
http://lakjer.dk/mikkel/spanish.shtml

You don't need high PR for high SERPs, that was discussed to death.

Why would I need high PR then at all?.. Just stare at this little cute
green thing?.. or just feel I am really an accomplished somebody?..

"Borek" <borek (AT) parts (DOT) bpp.to.com.remove.pl> wrote

Material for thinking:

My main page at chembuddy.com is PR5 now.

It has 19 outgoing links. Some of them are rel=nofollowed,
to channel more PR to the pages I want to have higher PR.

One may expect that the pages linked to without restrictions
should be PR4, or at least PR3.

Some are. Some are not.

http://www.chembuddy.com/?left=BATE&...ion_equilibria
is one of those with much lower PR then expected. PR0 to be precise.
This page is also linked from some external sources, so I will expect
it to be over PR0 even without link from my main page.

Of about 100 pages on the site only 7 has PR above 0. After previous
PR update over 20 pages had PR reported as 2 or 3 (with main page PR
being 4).

Anybody else noticing similar things - other pages than the main
loosing PR after the last update?

No idea what it means, apart from the fact that random surfer is
no longer random. It is biased now.

Best,
Borek
--
http://www.chembuddy.com - chemical calculators for labs and education
BATE - program for pH calculations
CASC - Concentration and Solution Calculator
pH lectures - guide to hand pH calculation with examples

Apart from the home page, I don't think any of your pages have a specific PR
associated with them. The displayed value is just calculated on the fly,
probably by dividing the composite PR by a number.

I've a case like this where the root page is PR5 and hundreds of trailing
variable sub pages show PR2, regardless of incoming links to specific pages,
link structure, age of the page etc. A new page today will always display
PR2. It is a waste of time trying to direct PR to certain pages. It does
not work. It is helpful however to remove say half of all the pages from
the Google index if all those pages are rubbish or virtually identical since
this reduces the division number and helps Google index only those pages
that are worthwhile indexing. robots.txt and rel="nofollow" are useful in
stopping the indexing of pages with negligible content value - such as
hundreds of pages which say "access to username=x is not allowed, please
login first" If you want to concentrate PR on specific interesting pages
then you need to use static page urls without trailing variables.

Best regards, Eric.

On Sat, 22 Oct 2005 15:24:51 GMT, "Mark Shell"
<markashell (AT) REMOVEearthlink (DOT) net> wrote:

You don't need high PR for high SERPs, that was discussed to death.

Why would I need high PR then at all?.. Just stare at this little cute
green thing?.. or just feel I am really an accomplished somebody?..

I'd go with your first guess.

BB

--
www.kruse.co.uk/ seo (AT) kruse (DOT) demon.co.uk
Elvis does my SEO

"Borek" <borek (AT) parts (DOT) bpp.to.com.remove.pl> wrote

Material for thinking:

My main page at chembuddy.com is PR5 now.

It has 19 outgoing links. Some of them are rel=nofollowed,
to channel more PR to the pages I want to have higher PR.

One may expect that the pages linked to without restrictions
should be PR4, or at least PR3.

Some are. Some are not.

http://www.chembuddy.com/?left=BATE&...ion_equilibria
is one of those with much lower PR then expected. PR0 to be precise.
This page is also linked from some external sources, so I will expect
it to be over PR0 even without link from my main page.

Of about 100 pages on the site only 7 has PR above 0. After previous
PR update over 20 pages had PR reported as 2 or 3 (with main page PR
being 4).

Anybody else noticing similar things - other pages than the main
loosing PR after the last update?

No idea what it means, apart from the fact that random surfer is
no longer random. It is biased now.

Best,
Borek
--
http://www.chembuddy.com - chemical calculators for labs and education
BATE - program for pH calculations
CASC - Concentration and Solution Calculator
pH lectures - guide to hand pH calculation with examples

Apart from the home page, I don't think any of your pages have a specific PR
associated with them. The displayed value is just calculated on the fly,
probably by dividing the composite PR by a number.

I've a case like this where the root page is PR5 and hundreds of trailing
variable sub pages show PR2, regardless of incoming links to specific pages,
link structure, age of the page etc. A new page today will always display
PR2. It is a waste of time trying to direct PR to certain pages. It does
not work. It is helpful however to remove say half of all the pages from
the Google index if all those pages are rubbish or virtually identical since
this reduces the division number and helps Google index only those pages
that are worthwhile indexing. robots.txt and rel="nofollow" are useful in
stopping the indexing of pages with negligible content value - such as
hundreds of pages with just one word different, which say "access to
username=xyz is not allowed, please login first" If you want to
concentrate PR on specific interesting pages
then you need to use static page urls without trailing variables.

Best regards, Eric.
[ I've sent this message twice. The first attempt a few days ago has not
been seen by me ]

Eric Johnston wrote:

"Borek" <borek (AT) parts (DOT) bpp.to.com.remove.pl> wrote in message
newsp.sy1n69z0584cds (AT) borek (DOT) ..
Material for thinking:

My main page at chembuddy.com is PR5 now.

It has 19 outgoing links. Some of them are rel=nofollowed,
to channel more PR to the pages I want to have higher PR.

One may expect that the pages linked to without restrictions
should be PR4, or at least PR3.

Some are. Some are not.

http://www.chembuddy.com/?left=BATE&...ion_equilibria
is one of those with much lower PR then expected. PR0 to be precise.
This page is also linked from some external sources, so I will expect
it to be over PR0 even without link from my main page.

Of about 100 pages on the site only 7 has PR above 0. After previous
PR update over 20 pages had PR reported as 2 or 3 (with main page PR
being 4).

Anybody else noticing similar things - other pages than the main
loosing PR after the last update?

No idea what it means, apart from the fact that random surfer is
no longer random. It is biased now.

Best,
Borek
--
http://www.chembuddy.com - chemical calculators for labs and
education BATE - program for pH calculations
CASC - Concentration and Solution Calculator
pH lectures - guide to hand pH calculation with examples

Apart from the home page, I don't think any of your pages have a
specific PR associated with them. The displayed value is just
calculated on the fly, probably by dividing the composite PR by a
number.
I've a case like this where the root page is PR5 and hundreds of
trailing variable sub pages show PR2, regardless of incoming links to
specific pages, link structure, age of the page etc. A new page
today will always display PR2. It is a waste of time trying to
direct PR to certain pages. It does not work. It is helpful however
to remove say half of all the pages from the Google index if all
those pages are rubbish or virtually identical since this reduces the
division number and helps Google index only those pages that are
worthwhile indexing. robots.txt and rel="nofollow" are useful in
stopping the indexing of pages with negligible content value - such
as hundreds (or thousands) of pages with just one word different, which
say "access
to info for username=xyz is not allowed, please login first" If you
want to
concentrate PR on specific interesting pages then you need to use static
page urls without trailing variables.

Best regards, Eric.

As a follow up to the above I wonder if, for PR purposes, a collection of

pages with trailing variables is considered as just one large composite page
(with the root page PR value) and the hundreds of duplicated links out
treated as occurring once only.

Best regards, Eric