Links and PR

how many links are needed to

[Digimon]

Hello all, we are developing a link popularity campaign. Until this moment we have got good results. About 50 new sites with 4 (only a few), 5 and 6 PRs (mostly) are linking to us.

How many links are needed to raise every point of PR?
Are 50 like those enough to get two more points?

Thanks a lot.

[Digimon]

Nobody can help me with this topic?

Aren't there studys or personal experiences about it?

[guezo2]

Nobody can answer this question, because it depends on the quality of the links (the PR of the linking pages and other factors)...
And the Toolbar PR scale isn't linear: it is much more difficult to go from PR5 to PR6 than to go from PR4 to PR5.

[Digimon]

Thanks you for the orientation, it's enough to know that I have to study it. I'll try with this 50 new links and ee'll see what happen.

Greetings

[rudy]

Ok. So we know that if I was the only link on a page with a PR 5 my page would get the full PR5 value. This however seems does not exist.
What I am finding (including dmoz and yahoo directory pages) is PR5 with 20 links on it if I look hard. So If I'm one of these links out of 20 and the page has PR5 how much PR will be passed on to me? How much PR will be passed on to me if I had 5 of these site/pages also linking to me?

It just occured to me that if the web was started yesterday, all websites on google would be PR0 and they would remain PR0 forever.
I wonder how google used PR when they started?

[ciml]

> So we know that if I was the only link on a page with a PR 5 my page would get the full PR5 value.

Yes, minus 1/30 of a notch on the Toolbar (so you only notice if their PR is a very low 5 and yours gets a very high 4).

> ...If I'm one of these links out of 20 and the page has PR5 how much PR will be passed on to me?

Approximately one notch less than them.

> How much PR will be passed on to me if I had 5 of these site/pages also linking to me?

You get slightly more PR shown on the Toolbar, due to the log scale (this might not be visible as the Toolbar only shows whole notches).

> It just occured to me that if the web was started yesterday, all websites on google would be PR0 and they would remain PR0 forever.

Not quite. It seems impossible to get high PageRank from nowhere, but if you consider how many hundreds of millions of pages all link together with common links to places like Yahoo! and Google, then PR can mount up. Also consider that the scale is normalised, so the top of the Toolbar scale is always the top PR page (although Google was off the scale on the Google Directory PR graphs at one point).

I would assume that Google use the previous month's PageRank as a start each month to save time on converging to stable PR values, but they don't have to.