Could the nofollow change could be interpreted as a form of usability guidance? For instance, I’ve recently removed drop-down menus from a handful of sites because of internal link and keyword density issues. This wasn’t done randomly. Tests were done to measure usage and value of this form of navigation that made it easy to make the change – allowing usability and SEO to dovetail nicely.
The total number of backlinks can often include many links from the same referring domain or multiple referring domains. It’s common for referring domains to link back to your content if it is relevant, authoritative or useful in some way to their own domain. In an ideal world, that’s how backlinks are accumulated; unique content that other websites want to be associated with.
For instance, if you have an article called “How To Do Keyword Research,” you can help reinforce to Google the relevance of this page for the subject/phrase “keyword research” by linking from an article reviewing a keyword research tool to your How To Do Keyword Research article. This linking strategy is part of effective siloing, which helps clarify your main website themes.
As Google becomes more and more sophisticated, one of the major cores of their algorithm, the one dealing with links (called Penguin) aims to value natural, quality links and devalue those unnatural or spammy ones. As a search engine, if they are to stay viable, they have to make sure their results are as honest and high-quality as possible, and that webmasters can't manipulate those results to their own benefit.
The combination of charisma, charm and intellect has helped catapult Sharpe to the top of the heap. In a recent conversation with him, I wanted to learn what it truly took to become an expert digital marketer. And one of the most important takeaways from that phone call was that if he could do it, anyone could do it. For someone who failed so devastatingly very early on in life, to rise from the ashes like a phoenix was no easy feat.
I say this because as Google is watching its own tailspin we normally see the relative growth the web in a matter of years working like the old web maker (spider+crawl) But a system that is exponential has the potential to become (node+jump). All the copy and wonderful content aside, the real use of the tool that is now called the internet will be discovering along the way, what some might call cybernetic or rather android-like mainframes for eco-stellar exploration, or instant language learning, or even mathematical canon though cloud computing.
In early 2005, Google implemented a new value, "nofollow", for the rel attribute of HTML link and anchor elements, so that website developers and bloggers can make links that Google will not consider for the purposes of PageRank—they are links that no longer constitute a "vote" in the PageRank system. The nofollow relationship was added in an attempt to help combat spamdexing.
 Matteo Pasquinelli reckons the basis for the belief that PageRank has a social component lies in the idea of attention economy. With attention economy, value is placed on products that receive a greater amount of human attention and the results at the top of the PageRank garner a larger amount of focus then those on subsequent pages. The outcomes with the higher PageRank will therefore enter the human consciousness to a larger extent. These ideas can influence decision-making and the actions of the viewer have a direct relation to the PageRank. They possess a higher potential to attract a user's attention as their location increases the attention economy attached to the site. With this location they can receive more traffic and their online marketplace will have more purchases. The PageRank of these sites allow them to be trusted and they are able to parlay this trust into increased business.