As far as I know, you can't get Pagerank unless you have dofollow backlinks on web pages with Pagerank. Some of that Pagerank is then distributed over to your website when Google does their PR update. If I'm correct with my theory, where exactly does Pagerank originate from?
PageRank uses a complex formula, but essentially, it weighs how many external links are pointing to your site (Incoming Backlinks, or IBL). The higher the PageRank the external site has, the higher PR juice you get from that link. It also depends on how many links are on the site that points to yours - the less links on that site the better. People tend to weigh their site's SEO and Search Results on their PR, but essentially it doesn't matter as much as people may think. PS - One of my best friends is Greg Davidson, from NJ.
Each page has a tiny bit of it that it starts with. From there, every page starts passing it around and it grows and calculates and stuff. Given the assumed dampening factor of 0.85, a new page would have a PR of 0.15. Of course, for Google to find the page, it would have to be linked from somewhere, thus giving it some external PageRank as well. Also, these numbers do not correspond to the toolbar PR. This is your actual PR, which can be from 0-infinite. Large sites are likely in the millions for their home page. Google then scales those numbers (by a factor of ~6) to fit into the toolbar.
That's a very interesting question. I guess they will probably start with giving a small weight 0.1 to all pages and then calculate the resulting PR number. After a few iterations they will reach the PR that we know about. The only problem with this approach is that PR for many sites will mostly increase per iteration; they may be restarting these calculations every few months (These are just guesses)
You are correct that PR will increase with each iteration, but it won't go higher than the true number -- each iteration will simply get closer to the real number.
I think the OP means it's like the chicken and the egg scenario. At least one page MUST have had PR for it to pass some of it onto the pages that it linked too. So where did its initial PR come from if it was the first page with PR?
Well, there are lots of websites out there with NO PR that have lots of backlinks. The idea that each page has PR doesn't really make sense. That would mean that it's possible to get PR by having thousands of backlinks from ALL 0 PR pages.
Correct, it is. Every page has some PR, even if the toolbar is showing 0. However, those pages have so little that it would take tens of thousands of links to get decent TBPR on another page. Given an assumed factor of 6, and all the PR of all pages falling directly in the middle of their toolbar PR, it would take 46,656 PR0 links to get you a PR6 (6^6). Even then, those pages would each have to have inbound links from somewhere (so Google would know about them), and the link to your new page would have to be the ONLY outbound link on each page. Do all of that, and it would work. Of course, PR isn't the only factor for ranking and Google would have long banned you before you got that far.
Well, it makes sense to me, that's the only way I can explain some of my sites having PR3 with 1000 links for free directory pages (of course PR0).
Did you look over every single backlink to make sure about this? I'm pretty sure there's 1 or 2 backlinks on page with PR that you didn't know about. Maybe they didn't have PR when you submitted your website.
I wouldn't say I did it in recent past, but last year I had actually used digixmas' bulk pagerank checker, export my backlinks from google webmaster tools and yahoo and checked PR. Most of 0 or PR N/A. Some may have now become PR1/2 But I did get PR3. Look at it this way, google has said the 'real' PR is more like a float, so PR 0 can be anything between 0.01 to 0.99 (assuming they use 2 decimal digits).
Building quality backlinks to your website can increase your pagerank. While you can also drive great traffic and see your page rank increase coz we are concerned about visitors and they will do rest work................
Yeah, but I can get pagerank simply by having 1 or 2 backlinks on pages with PR. That's why some people cheat by buying a few backlinks because they can't find any "free" ways to get pagerank.