

October 28, ‘07 — It appears from the buzz in blogosphere that some time in past week search giant Google has changed its PageRank algorithm to punish its critics, internal linking networks and illegitimate webmasters.
Forbes, CNET’s News.com, The Sydney Morning Herald and many others writes on the Google changing its PageRank calculations.
SMH writes, “In the brave new world of online media, fortunes can be won and lost on the whim of Google’s key search algorithm. And when, without warning, Google tweaked that mathematical formula this week, there was panic on the world wide web.
Swarms of bloggers and webmasters of major sites like Washingtonpost.com, Forbes.com, Engadget.com and SFGate.com noticed a downgrading in their PageRank, Google’s measure of a web page’s value. A site’s PageRank impacts not only its ranking in Google search results but also the price it can charge advertisers. A drop in ranking can have serious financial consequences, especially for smaller operators.
The search giant, through its dominant search engine and AdWords/AdSense network, is relied on by millions of websites not only for traffic referrals but for monetisation as well.
Ironically, in the ultimate democracy that is the internet, Google reigns as virtual dictator. By changing the way it ranks sites in search results, it has the power to effortlessly shape the digital economy and manipulate the incomes of millions of web businesses around the world.”
Forbes: “Google, for online businesses, has the impact that Alan Greenspan once had on the financial markets. Online companies pounce on every whisper or cryptic comment from Google about how it ranks pages as an indicator–up or down–of how online traffic will flow for millions of Web sites.
On Thursday, Web site administrators for major sites including the Washingtonpost.com, Techcrunch, and Engadget (as well as Forbes.com) found that their “pagerank”–a number that typically reflects the ranking of a site in Google results for key search terms–had dropped precipitously according to Google Toolbar, a software program that tracks Google’s assessment of a site.”
CNET’s News.com: “Well, speculation in the blogosphere today has it that Google has decided to punish popular sites that accept paid links to lesser sites. As Valleywag puts it, “Google’s bean counter, naturally, would prefer that you pay Google for sponsored links instead.
Anyway, part of the buzz about this move is that some of the sites that are taking PageRank hits are the very sites (Search Engine Journal, Copyblogger, Search Engine Guide and the Blog Herald, among them) that cover search engine optimization issues, and some suspect that perhaps the search giant is punishing them for being critics.”
PageRank algorithm explained by Wikipedia: Simplified PageRank algorithmAssume a small universe of four web pages: A, B, C and D. The initial approximation of PageRank would be evenly divided between these four documents. Hence, each document would begin with an estimated PageRank of 0.25.
If pages B, C, and D each only link to A, they would each confer 0.25 PageRank to A. All PageRank PR( ) in this simplistic system would thus gather to A because all links would be pointing to A.