The only way to get PR is inbound links. So how does PR origionate? How do the PR givers derive their pr, when pr was first concieved by G. Did they bless a few sites with PR and it has spread from there? This is a bit like asking who are we and where did life come from?
lol interesting. i think google came up with PR, and first gave it to the bigger sites. dont forget pr is mainly based in the amount and quality of incoming links, so google already knows about who is linking to you, and the type of website they are in comparison to you, so for them, it was a pretty easy tool to implement. after them giving a statement about what the little green bar is all about, its spread like wild fire ever since. `
I'm not a mathematician but it's based on the random surfer model where each page begins with having an equal chance of the surfer hitting it. Then the number and strength of the links are added recursively. Its a pretty elaborate formula and it's only part of Google's ranking formula.
Google did'nt come along until there were many more sites than that. It does'nt really matter how sites there are, except that it makes for more recursive loops, so it takes longer to compute. Google uses many machines to do this. The Wikipedia entry is pretty good: http://en.wikipedia.org/wiki/PageRank
It was generated for all sites internally long before they started doing public exports. I only got a PR4 on the very first roll out, it was a big novelty the first day browsing sites seeing what they had and how it all worked. So, the Pagerank came before the Green Bar.
All pages have a small PR to start with. Just look at the PR formula. The term (1-d) will lead to a non-zero value even when there are no incoming links to the page. More on PageRank.
Simple, they have chosen some authority sites in every niche and give default PR Or / And starting from PR0, if a particular site have 1000 PR0 links means this particular site is PR 1 or PR2 or what ever according to their algorithm. This is not some thing like “who is firstâ€. Because PR0 is their. Smart one.
Thats what I was implying. Did Sergie and the crew pop down the local with a wifi laptop and just sort of do fantasy football league of websites. They surely must have picked some at random or as authority sites. Otherwise some of the e.g University websites would need about a 2500000 pr zero links to reach pr 8 or 9
Get yer fill the original Patent and more recent follow up - a tale of 2 PageRank patents .... there are links to both patents relating to PageRank
What I think is, at initial stages a link was a link, there wasn’t such PR and all, then step by step the had process their data and come up with PR. Because they have data, it might be easy for them to detect Authority sites and may be they had given some sort of PR to them.
Eh, what has KFC got to ndo with this, unless it was what they were eating when they dreamt up the PR?
adobe.com mac.com apple.com ect... All pr10, then it just started the more sites linked to each other. if you buy a pr0 brand new from reg, leave it 1 year it is going to be atleast pr1 then you buy another site link it together, after a year atleast a pr1, link them both to another site... pr1, link all 3 to another site pr1, link all 4 to another site maybe pr2.. ect.. keeps on going like that sort of.. thats how i imagine pr was spread
This is some thing which is unimaginable. I know in seo there is an Age factor but its nothing do with PR.