عبلة الكويت
عضو برونزي
عدد المساهمات : 59
نقاط : 87
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تاريخ التسجيل : 17/10/2011
 |  موضوع: أسرار التغيرات التى حدثت فى جوجل الخاصة بتقييم صفحات الويب فى النصف الثانى من عام 2005  الإثنين 17 أكتوبر 2011 - 10:46 | |
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أسرار التغيرات التى حدثت فى جوجل الخاصة بتقييم صفحات الويب فى النصف الثانى من عام 2005
Cosmetic Changes at
Google PageRank from June 2005
Google is undergoing some of the most sweeping changes in its short,
seven year history. As of next week, Google will have finished sorting
what might be its largest algorithm shift ever as the final points of
the 3.5 part Bourbon Update were installed on 15/06/2005. This update
has been staggered into three and a half sections in order to avoid a
massive amount of dislocation in established rankings as was seen in
previous major updates. While changes stemming from the Bourbon Update
have not actually manifested into a full reordering of Google's search
engine results pages (SERPs), many individual webmasters have reported
fairly significant losses or gains in ranking over the past few days.
There are dozens of factors behind changes at Google but the
greatest is the enormous valuation of the company itself. With share
prices nearing the $300 mark and current market capitalization topping
$80 billion, Google is considered the most valuable media company in the
world, surpassing the $78 billion value of Time-Warner and rising far
above Yahoo's estimated value of $56 billion. Most of Google's riches
are newly found, having been generated after their August 2004 IPO. In
their race to outlast, outperform and outsmart their competitors, Google
has changed its PR strategy and its appearance to suit the legions of
suits swirling in and out of their Mountain View offices.
While monëy may move mountains, it takes a community to change an
institution. The search environment has changed substantially over the
past three years and in that time, every major player in the search
sector has changed as well. Today, Google has become a lot more
complicated, so much so that it has stopped trying to look simple. This
change in corporate attitude is best reflected in two places, the
homepage and the About Google section.
Google's homepage used to be quite simple. Recently, Google created a
personalized portal interface google.com/ig offering users instänt
access to several of these new features. For folks with Google accounts
such as Gmail users, subscribers to Google Groups, Google desktop users
and other account holders, personalized versions of the once sparse
homepage presents instänt entry points to the various applications the
individual uses. Many industry observers have suggested Google's
adoption of so many new features and an all-in-one interface show they
are moving towards presenting themselves as more of a portal like Yahoo
or MSN. Google has always been a bit different than its competition.
Even when borrowing and innovating on competitors' ideas, Google has,
until today at least, managed to keep itself at an arm's length from the
mainstream in appearance and operation. The maintenance of that image
gave Internet users an alternative view of Google, one that propelled
Google to a position of almost total dominance of the search engine
sector. While that dominance might have slipped over the past year,
Google is still the most popular search appliance in the world.
One of the ways Google has acted differently than others is in the
appearance of not taking itself too seriously. Its corporate ethics
policy was limited to the three word phrase, "Don't be evil". Its front
page interface retains the double-entendre induced "I feel lucky"
button, even though the button is rarely used. The prospectus issued
during their August 2004 IPO was specifically written to appear
idealistically anti-corporate. Since its introduction, Google has
practiced projecting a simple, youthful image that required very little
in the way of explanation, so long as their search engine lived up to
users' expectations.
Google strives to live up to user expectations and, for the most
part, has met and exceeded them time and time again. There is one
long-held expectation that Google may not be able to live up to any
longer though. Many of us assume Google's relatively informal public
attitude will continue to carry over into the later part of the decade.
It won't. By comparison, Google will almost certainly continue to be
perceived as the search engine driven by youthful energy. Whenever
competitors such as MSN or Yahoo try to appear as down-to-Earth as
Google does, their efforts seem obvious and forced. Does anyone remember
that poor-fellow in the butterfly suit wandering aimlessly around New
York last year? Google's communication style is maturing and the best
place to view these changes is on the About Google section of their
site.
Google has published information about itself on pages found behind
the About Google link for several years. While documents found in the
About section have nevër been totally static, a facelift over the past
few weeks has radically altered the look and feel of the section. Along
with the traditional organic search engine results and highly targeted
paid-ads, Google is actually a series of 30-someodd search-based
applications ranging from alerts and answers to wireless search and
weather information. Driven in part by an inventive entrepreneurial
spirit and in part by a desire to keep up with products offered by
competitors, Google has been rapidly adding new features and tools to
their core search service for the past three years.
Google's About Google page was once much smaller than it is today.
It has grown slightly largër every time Google adds another offering to
it. The biggest changes are found behind the increasing number of links
on the About page. Today's version of the About page has five boxes
added to the left hand side of the page advertising Google Desktop,
Blogger, Google Code, Google Mobile, and My Search History. In the
center column, Google continues to show four main site sections labeled,
Our Search, For Site Owners, Our Company, and More Google.
Collectively, those sections contain a largër number of links than they
did previously and the number of documents found behind those links has
grown as well. Serious Google users should take an hour or two to tour
these changes and learn more about the staggering range of features,
services and search-enhancements Google currently offers.
For webmasters and SEOs, an examination of the new Google Webmaster
Guidelines is a definite must. Google has recently changed its webmaster
guidelines which are also considered to be a primer on "ethical SEO"
practices in relation to Google placements. Google has recently updated
its webmaster guidelines to include information on "supplemental
listings", crawling frequencies and prefetching. Google has also posted
information on its new Google Sitemaps experiment.
Google Sitemaps is perhaps the most important new feature for SEOs
offered by Google in a long time. Said to be an experiment in spidering,
Google Sitemaps invites webmasters to feed site data directly to Google
through an XML sitemap page. Webmasters and SEOs can now tell Google
exactly which sections of their sites to crawl, and providing they are
keeping their XML sitemap current, when and where to look for changes to
their sites. This experimental initiative will especially help
webmasters working with database driven sites or large Ecommerce sites
where documents are subject to frequent change and are often found
behind long-string URLs. Google has been kind enough to provide detailed
information on establishing an XML feed and setting priorities for
Googlebot.
As it grows, Google appears to be running into the same problem
other webmasters with numerous sites or services encounter, the rapid
dilution of a domain's unique topic focus. In order to keep themselves
accessible, understandable and relevant, Google's teams of engineers,
programmers and public relations specialists are involved in what
appears to be a massive overhaul of the interface, public documents and
the basic sorting algorithm that produces organic results. As in
previous years, how this all plays out in the end is entirely up to the
searching public. From the SEO/SEM perspective, it is a good thing
Google is in the midst of this update. Web workers have been demanding a
greater degree of transparency from Google for some time and perhaps
these updates are the beginning of a new commitment to communication
from the Googleplex.
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