Google Pagerank Overview
Google stands alone in its focus on developing the "perfect search engine," defined by co-founder Larry Page as something that, "understands exactly what you mean and gives you back exactly what you want." To that end, Google has persistently pursued innovation and refused to accept the limitations of existing models. As a result, Google developed its own serving infrastructure and breakthrough PageRank™ technology that changed the way searches are conducted.

From the beginning, Google's developers recognized that providing the fastest, most accurate results required a new kind of server setup. Whereas most search engines ran off a handful of large servers that often slowed under peak loads, Google employed linked PCs to quickly find each query's answer. The innovation paid off in faster response times, greater scalability and lower costs. It's an idea that others have since copied, while Google has continued to refine its back-end technology to make it even more efficient.

The software behind Google's search technology conducts a series of simultaneous calculations requiring only a fraction of a second. Traditional search engines rely heavily on how often a word appears on a web page. Google uses PageRank™ to examine the entire link structure of the web and determine which pages are most important. It then conducts hypertext-matching analysis to determine which pages are relevant to the specific search being conducted. By combining overall importance and query-specific relevance, Google is able to put the most relevant and reliable results first.

PageRank Technology: PageRank performs an objective measurement of the importance of web pages by solving an equation of more than 500 million variables and 2 billion terms. Instead of counting direct links, PageRank interprets a link from Page A to Page B as a vote for Page B by Page A. PageRank then assesses a page's importance by the number of votes it receives.

PageRank also considers the importance of each page that casts a vote, as votes from some pages are considered to have greater value, thus giving the linked page greater value. Important pages receive a higher PageRank and appear at the top of the search results. Google's technology uses the collective intelligence of the web to determine a page's importance. There is no human involvement or manipulation of results, which is why users have come to trust Google as a source of objective information untainted by paid placement.

Hypertext-Matching Analysis: Google's search engine also analyzes page content. However, instead of simply scanning for page-based text (which can be manipulated by site publishers through meta-tags), Google's technology analyzes the full content of a page and factors in fonts, subdivisions and the precise location of each word. Google also analyzes the content of neighboring web pages to ensure the results returned are the most relevant to a user's query.

Article Source: Google Pagerank technology is provided by Google.

Google explains Page Rank as: "PageRank relies on the uniquely democratic nature of the web by using its vast link structure as an indicator of an individual page's value. In essence, Google interprets a link from page A to page B as a vote, by page A, for page B. But, Google looks at more than the sheer volume of votes, or links a page receives; it also analyzes the page that casts the vote. Votes cast by pages that are themselves "important" weigh more heavily and help to make other pages "important."

Important, high-quality sites receive a higher PageRank, which Google remembers each time it conducts a search. Of course, important pages mean nothing to you if they don't match your query. So, Google combines PageRank with sophisticated text-matching techniques to find pages that are both important and relevant to your search. Google goes far beyond the number of times a term appears on a page and examines all aspects of the page's content (and the content of the pages linking to it) to determine if it's a good match for your query.

Integrity
Google's complex, automated methods make human tampering with our results extremely difficult. And though we do run relevant ads above and next to our results, Google does not sell placement within the results themselves (i.e., no one can buy a higher PageRank). A Google search is an easy, honest and objective way to find high-quality websites with information relevant to your search."Google.com"

Internal and External Linking.
Internal linking plays a part in the Page Rank of the pages within a site. It is most common to see the homepage, index.htm, to have the highest PR of the website.The linking structure within the site should follow the themed approach to internal linking, that is, minimizing linking between 2nd and 3rd level directories and pages. The role of internal linking as a factor in PR is one of sharing the PR of the site not increasing the PR, and the dilution of your keyword strength and theme. As such it is important to review the internal linking structure of your site.

As you might imagine External linking is the largest factor in determining PageRank. Unfortunately it is also the area where you have the least control. You cannot force another webmaster to link to your site, especially one that already has a high PageRank. This is one reason increasing your PageRank is difficult. The actual weight of effect that Google's PageRank has on the ranking of a website or web pages is debatable. However we do know that a web page's PR does play a role in Google's indexing and Google's ranking. Web pages with higher PageRank, are more frequently crawled and refreshed. Typically, a higher PR will accompany a higher-ranking site; however this is not always the case.

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Page Rank and Search Engine Optimization.
Google is at the center of today's search engine marketing. Through the use of complex algorithms programmed to identify the trickery unscrupulous “black hat” experts have used in the past. Not only can they see what is being done, in some cases as a penalty for using "black hat" techniques they will reduce the search engine placement of the website. At Zeus Design, we welcome this course in search engine technology and view it as appropriate. As a result of this technology search engines results are much more relevant to what the user is looking for.

True SEO Web Design isn't magic or hocus pocus, its an art that requires following a fairly defined path of website development including valuable reader content, properly design pages, prominently placed key search terms, search term refinement and page comparison. We are a “white hat” SEO business. We do not use gimmicks or unscrupulous ("black hat") search engine tactics. While Black Hat SEO may sometimes achieve results, they will often be short lived and could get your site removed and "blacklisted" from search engines. Rather we adhere to search engine's best practices and perform legitimate code optimization, optimized copy writing and editing that meets search engine rules and makes for top search engine positioning that lasts and continues to perform well for months and, in many cases, years. Learn how SEO can help boost your pagerank.