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Say I have a PR4 site.
Then say 50 PR3, 20 PR2 and 5 PR1 sites link to this PR4 site. Will that increase the PR4 to PR5? Or in other words, will it have a positive effect?
( Note that these numbers are only an example, vary them with whatever. )
Another question:
Is the PR "rub-off" higher with less links on the page?
Say I have 10 outlinks on a page, is that better than 20?
Meaning, will the 10 sites get a better PR value than if I had 20 links? Hmm, poorly explained, but I hope you understand what I mean... :)
Aaaand another one:
Does Google care about sites linking to eachother being on the same IP-block? Or even on the same IP?
And the last one:
When will you see an actual change in PR, in the toolbar I mean? Say the update/crawl is today, how long till it will reflect in the PR bar?
Say I have a PR4 site.
Then say 50 PR3, 20 PR2 and 5 PR1 sites link to this PR4 site. Will that increase the PR4 to PR5? Or in other words, will it have a positive effect?
( Note that these numbers are only an example, vary them with whatever. )
Yes... eventually you will increase, however, the number of links at the lower level means you need "alot" to produce a "toolbar" increase.
Another question:
Is the PR "rub-off" higher with less links on the page?
Say I have 10 outlinks on a page, is that better than 20?
Meaning, will the 10 sites get a better PR value than if I had 20 links? Hmm, poorly explained, but I hope you understand what I mean...
Yes... the actual PageRank passed on to you is divided by the number of outbound links on the sending page. An example - receiving a link from a PR4 with no other links is more valuable (to PR transfer) than a PR5 page with 10 links.
Aaaand another one:
Does Google care about sites linking to each other being on the same IP-block? Or even on the same IP?
Not Really, but the more diverse the IP addresses are the better. If for example: the host you are on receives a penalty and all of your links are from IP's on that host your complete linking infrastructure will likely be "more" affected than a linking structure made from other more unqiue IP's.
And the last one:
When will you see an actual change in PR, in the toolbar I mean? Say the update/crawl is today, how long till it will reflect in the PR bar?
Once the dance occurs -- Google changes www2 or www3 to wwww.google a change will be apparent.
If you go to www2.google or www3.google when the update occurs type in your domain name -- and click through you can "sometimes" get an advance look at a potential toolbar increase.