Pagerank gets passed from the main url to subpages, but is it also the other way around ? Let's say you have alot of inbound links to page mainsite.com/folderx/pagex.htm Will this affect PR of the mainsite ?
Your own site's inbound links does not effect well on PR, PR is exactly the popularity of your site.. And your site will be popular when other sites give you a linkback... You can see there are many sites which have PR 5 on home page and PR 0 on inner pages.. because they only have a link back to their home page
I think what he means is........... if you post a review about your site on digg.com do you get the full weight of digg.com's referral or do you only receive the PR weight of the link on the digg article page which is 0 I think you only receive a 0 unless of course many people link to the digg article and it earns it's own page rank in time. the same goes with forum posts I believe. In other words you receive the PR weight from the page that the link is on rather than the website as a whole
Motter, you're correct The reason is unless your story makes it to the front page, it will never end up on a page with a high PageRank. It'll stay on the 'upcoming' pages for a while and then disappear.
PR works based on the page (note the page) not the site. It works by determining the importance of a page by judging how many other pages vote for that page. When people say they have a pr6 site, this means their homepage is a pr6 page. Inner pages usually will be less than pr6.
PR IS shared between pages on a site. One of the reasons the homepage usually has the highest PR is because all the internal pages on a site link to the homepage. So if you have a page that gets lots of links it pays to see whether there are any links you should have on that page but don't. If your site has a good internal link-structure you should already be halfway there on this one.
To answer your actual question, as long as you have a link from your interior page to your homepage, then yes, the PR goes that way as well. Technically speaking, G doesn't know what your homepage is. Think of the old Geocities free web pages. There were millions of websites that weren't on the www.geocities.com root, and their PR was all independent of each other. It does not matter in the least whether or not pages are on the same domain when it comes to PR passing. Whatever links to a page passes the PR to that page, and in turn whatever that page links to (including the homepage, if it does) gains PR from it. Another good example of this is Matt Cutts... his "homepage" (root of his domain) is currently a PR5, but the blog itself, which is where everyone links to, is PR7. -Michael
Just to add to Mvandemar - to be absolutely sure this is understood: pagerank is passed between pages that link to each other. So internal pages get links from each other and the homepage, so they get a bit of PR from that. But where people link to specific pages more than they do the homepage, those specific pages get a higher PR (like Matts blog - which everyone interested in SEO should read, BTW).