Linking to Effects on PR

How does linking from a site with an average PR to a site with a high PR affect the average site's PR?

PR5 ----> PR 9 (no receipticating link [i.e. NOT THIS: PR 5 <-----> PR 9])

What other pros and cons (in relation to search engines) are there for linking to a high PR site.

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Page Rank as I understand it is assigned to a page, not a site, and therefore flows from page to page. The page the link comes from is the key.

If the main page of mywebsite.com is PR7, but I put your link on mywebsite.com/links.html that has a PR5 along with 99 other outgoing links, it may not have as much impact as one link from a page with PR4 and only 2 outgoing links.

I have found the following to be helpful in my understanding of PR:
http://webworkshop.net/pagerank.html
http://www.iprcom.com/papers/pagerank/

very interesting...thank you.

nothing like math.

How does linking from a site with an average PR to a site with a high PR affect the average site's PR?

PR5 ----> PR 9 (no receipticating link [i.e. NOT THIS: PR 5 <-----> PR 9])


I think it lowers the pr of the average site since you are sending pr to the other site via the link.

Yahoo has a higher pr because everyone links to it. None of those sites get any back unless Yahoo links back [which is why a Yahoo listing is so valuable].

yahoo has a billion links - its a directory

i think yahoo has a high pr for a different reason.

What reason is that?

Any site that is automatically well-known by the internet community is bound to get thousands of links just by personal websites. I remember I used to link to Yahoo, Altavista, etc. on my personal homepage. Although these may be low-PR'ed websites, it all counts up. Then you gotta assume Yahoo has hundreds of partners worldwide that link to them (those sites also having high PR).

Google is a Yahoo! partner

It really depends on what else you do on the page. If there are no other links, for example to the homepage, there is no affect at all on the page's or site's PR.

Gringo.

traveler123 wrote:
I think it lowers the pr of the average site since you are sending pr to the other site via the link.

I dont think so. and it would make no sense to give away PR when you link. Here is what I found on the above link to Webworkshop.net :

"Note that when a page votes its PageRank value to other pages, it's own PageRank is not reduced by the value that it is voting. The page doing the voting doesn't give away its PageRank and end up with nothing. It isn't a transfer of PageRank. It is simply a vote according to the page's PageRank value. It's like a shareholders meeting where each shareholder votes according to the number of shares held, but the shares themselves aren't given away. Even so, pages do lose some PageRank indirectly, as we'll see later. "

And this makes also more sense otherwise all directories would have a PR of 0 as they link out much more then get linked to (see Yahoo). AND lets not forget the people at Google are trying to deliver higher quality content for search results etc.

My two cents worth