This is what happens to the numbers after 15 iterations…. Look at how the 5 nodes are all stabilizing to the same numbers. If we had started with all pages being 1, by the way, which is what most people tell you to do, this would have taken many more iterations to get to a stable set of numbers (and in fact – in this model – would not have stabilized at all)
A decent article which encourages discussion and healthy debate. Reading some of the comments I see it also highlights some of the misunderstandings some people (including some SEOs) have of Google PageRank. Toolbar PageRank is not the same thing as PageRank. The little green bar (Toolbar PageRank) was never a very accurate metric and told you very little about the value of any particular web page. It may have been officially killed off earlier this year, but the truth is its been dead for many years. Real PageRank on the other hand, is at the core of Google’s algorithm and remains very important.

The green ratings bars are a measure of the importance Google’s assessment of the importance of a web page, as determined by Google’s patented PageRank technology and other factors. These PageRank bars tell you at a glance whether other people on the web consider Google considers a page to be a high-quality site worth checking out. Google itself does not evaluate or endorse websites. Rather, we measure what others on the web feel is important enough to deserve a link. And because Google does not accept payment for placement within our results, the information you see when you conduct a search is based on totally objective criteria.
Unfortunately, SEO is also a slow process. You can make “quick wins” in markets which are ill-established using SEO, but the truth is that the vast majority of useful keyphrases (including long-tail keyphrases) in competitive markets will already have been optimized for. It is likely to take a significant amount of time to get to a useful place in search results for these phrases. In some cases, it may take months or even years of concentrated effort to win the battle for highly competitive keyphrases.
Backlinks are a major ranking factor for most search engines, including Google. If you want to do SEO for your website and get relevant organic traffic, building backlinks is something you should be doing. The more backlinks your website has from authoritative domains, the higher reputation you’ll have in Google’s eyes. And you’ll dominate the SERPS.

By the way, YouTube currently is all over the place. It nofollows links in the Spotlight and Featured areas, where you assume there’s some editorial oversight. But since some of these show on the basis of a commercial relationship, maybe YouTube is being safe. Meanwhile, Videos Being Watched now which is kind of random isn’t blocked — pretty much the entire page is no longer blocked.

By 2004, search engines had incorporated a wide range of undisclosed factors in their ranking algorithms to reduce the impact of link manipulation. In June 2007, The New York Times' Saul Hansell stated Google ranks sites using more than 200 different signals.[25] The leading search engines, Google, Bing, and Yahoo, do not disclose the algorithms they use to rank pages. Some SEO practitioners have studied different approaches to search engine optimization, and have shared their personal opinions.[26] Patents related to search engines can provide information to better understand search engines.[27] In 2005, Google began personalizing search results for each user. Depending on their history of previous searches, Google crafted results for logged in users.[28]
Also, I’ve never found that page rank scultping worked. It might have for smaller sites that have a simple structure to follow. but in case of CMS’s handling a large number of pages and dynamic websites, its not practical to have an intricate graph of how your page rank flows. I mean, even if you did, wouldn’t it be easy and clever if you just leave some thumb rules (like always nofollowing an external link) and leave it to Google for the rest ? Rather ocus on the content ?
Finally, it’s critical you spend time and resources on your business’s website design. When these aforementioned customers find your website, they’ll likely feel deterred from trusting your brand and purchasing your product if they find your site confusing or unhelpful. For this reason, it’s important you take the time to create a user-friendly (and mobile-friendly) website.
As an Internet marketing strategy, SEO considers how search engines work, the computer programmed algorithms which dictate search engine behavior, what people search for, the actual search terms or keywords typed into search engines, and which search engines are preferred by their targeted audience. Optimizing a website may involve editing its content, adding content, doing HTML, and associated coding to both increase its relevance to specific keywords and to remove barriers to the indexing activities of search engines. Promoting a site to increase the number of backlinks, or inbound links, is another SEO tactic. By May 2015, mobile search had surpassed desktop search.[3] In 2015, it was reported that Google is developing and promoting mobile search as a key feature within future products. In response, many brands are beginning to take a different approach to their Internet marketing strategies.[4]
The internet was the little guy savior, simple sites could rank well locally. Sadly your company is in the process of destroying that. In this economy small business with zero page rank that are listed on page 22 of results, need to be found in order to survive. My customers are really suffering because of the work that is coming out of Google, it keeps getting worse. Their conversions are still good coming out of Yahoo and MSN and now Bing. They do not have the resources to produce blogs, forums, or $5,000 websites let alone pay for Adwords when they are just trying to pay rent and not a lot of people can do their own web production.

One thing that has worked well for me lately that can work well (and may help with the infographic promotion) is surveys. Google Forms allow you to create a survey for free. Think of interesting questions to your niche and start promoting the survey (ask well known influencers in your niche to share the survey with their social followers to help with responses. Offer them a link as a contributor once the survey is complete). Once you have a few hundred responses, you can create a commentary about your findings (Google also puts the data into graphs). If you have enough responses and the information is interesting, get in touch with the same bloggers who helped push it out there to see if they would be happy to share the results. The beauty of this method is that if the results are interesting enough, you might end up getting a link back from a huge news site.

SEO experts have a really bad habit: They like to throw around strange words and industry jargon when they talk to customers without checking to make sure that their clients understand the topic at hand. Some do this intentionally to paper over the fact that they use black hat techniques that will ultimately hurt their customers. But for most, it’s simply a matter of failing to recognize that part of their job is to educate their clients.

The name "PageRank" plays off of the name of developer Larry Page, as well as of the concept of a web page.[15] The word is a trademark of Google, and the PageRank process has been patented (U.S. Patent 6,285,999). However, the patent is assigned to Stanford University and not to Google. Google has exclusive license rights on the patent from Stanford University. The university received 1.8 million shares of Google in exchange for use of the patent; it sold the shares in 2005 for $336 million.[16][17]

Some search engines have also reached out to the SEO industry, and are frequent sponsors and guests at SEO conferences, webchats, and seminars. Major search engines provide information and guidelines to help with website optimization.[18][19] Google has a Sitemaps program to help webmasters learn if Google is having any problems indexing their website and also provides data on Google traffic to the website.[20] Bing Webmaster Tools provides a way for webmasters to submit a sitemap and web feeds, allows users to determine the "crawl rate", and track the web pages index status.

Matt Cutts, it’s Shawn Hill from Longview, Texas and I’ve got to say, “you’re a semseo guru”. That’s obviously why Google retained you as they did. Very informative post! As head of Google’s Webspam team how to you intend to combat Social Networking Spam (SNS)? It’s becoming an increasingly obvious problem in SERPs. I’m thinking Blogspam should be the least of Google’s worries. What’s your take?