4. 2002 2009
On Page SEO
PageRank
Anchor Text
Domain Authority
Link Context
User Signals
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http://www.greenlightdigital.com/assets/images/history/greenlight-history-of-seo-2002-
8. The day the (search) world changed
02.24.2011
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9. Finding more high-quality sites in search
Feb 24, 2011
Our goal is simple: to give people the most relevant
answers to their queries as quickly as possible. This requires constant
tuning of our algorithms, as new content—both good and bad—comes
online all the time.
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10. But in the last day or so we launched a pretty big algorithmic
improvement to our ranking—a change that noticeably impacts
11.8% of our queries—and we wanted to let people know
what’s going on.
This update is designed to reduce rankings for low-
quality sites …
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11. High-quality sites algorithm goes global, incorporates user
feedback
Apr 11, 2011
In addition, this change also goes deeper into the “long tail” of low-
quality websites to return higher-quality results
where the algorithm might not have been able to make an assessment
before.
2% of U.S. queries are affected
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12. More guidance on building high-quality sites
May 06, 2011
Search is a complicated and evolving art and science, so rather than
focus
focusing on specific algorithmic tweaks, we encourage you to
on delivering the best possible experience for
users.
Panda was just one of roughly 500 search improvements we expect
to roll out to search this year.
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13. TRUST
Would you trust the information presented in this article?
Would you be comfortable giving your credit card information to this site?
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14. AUTHOR
Is this article written by an expert or enthusiast who knows the topic well, or
is it more shallow in nature?
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16. COMPREHENSIVE
Does the article describe both sides of a story?
Does this article provide a complete or comprehensive description of the
topic?
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17. SHARE
Is this the sort of page you’d want to bookmark, share with a friend, or
recommend?
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18. USER EXPERIENCE
Does this article have an excessive amount of ads that distract from or
interfere with the main content?
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22. “Coming up with elegant, fitting and relevant solutions to meet the
challenges mobility, modes, media,
of
personalization, location, socialization,
and language will take decades.”
Marissa Mayer, VP Search Products & User Experience, Google
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23. More Location
More people will access internet through smart devices.
Majority of mobile searches are local in nature
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24. More Social Context
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Image credit: http://ffden-2.phys.uaf.edu/212_spring2011.web.dir/Samantha_Porreca/Seesaw.html