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** Sort the full timeline by "Event type" and look for the group of rows with value "{{w|Spamdexing}}".
** You will see a number of Black hat SEO techniques, and related events.
* What are some significant events illustrating the evolution of {{w|internet search}}providing context to SEO?** Sort the full timeline by "Event type" and look for the group of rows with value "Search evolutionBackground".** You will see the evolution significant events, some of internet them describing search toward {{w|mobile search}}evolution, and the envisage of future mainstream search toward [[w:voice others related to major search|voice]]engines.
==Big picture==
| 1999 || || {{w|Google}} || {{w|Spamdexing}} || [[w:Google bombing|Google bombs]] date back to this year, when a search for "more evil than Satan himself" results in the {{w|Microsoft}} homepage as the top result.<ref>{{cite web|url=https://www.clickz.com/google-bombs-arent-so-scary/61942/|accessdate=27 June 2020|title=Google Bombs Aren't So Scary|first=Danny|last=Sullivan|date=March 18, 2002|work=ClickZ}}</ref><ref name="searchenginepeople.com">{{cite web |title=The 10 Most Incredible Google Bombs |url=https://www.searchenginepeople.com/blog/incredible-google-bombs.html |website=searchenginepeople.com |accessdate=27 June 2020}}</ref>
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| 2000 || || {{w|Yahoo!}}, {{w|Google}} || Partnership Background || In what is considered to be the worst strategic move in search history<ref name="dailytechmonde.blogspot.com">{{cite web |title=Story SEO: Search Engine Optimization |url=https://dailytechmonde.blogspot.com/2019/12/search-engine-optimization-story.html |website=dailytechmonde.blogspot.com |accessdate=27 April 2020}}</ref>, {{w|Yahoo!}} partners with {{w|Google}} and lets Google power their organic results instead of {{w|Inktomi}}. At this time Google is a little-known search engine. After this, every Yahoo search result would say “Powered by Google”, with Yahoo! ending up introducing their largest competitor to the world and Google becoming a household name.<ref name="20 Years of SEO: A Brief History of Search Engine Optimization"/>
|-
| 2000 || || || Conference || Pubcon launches in {{w|London}} as the first of a large search conference series.<ref>{{cite web |title=10 Things You Might Not Know About Pubcon |url=https://www.pubcon.com/10-things-you-might-not-know-about-pubcon |website=pubcon.com |accessdate=20 April 2020}}</ref><ref>{{cite web |title=15 Facts About #Pubcon You May Not Know |url=https://www.searchenginejournal.com/15-facts-pubcon-may-not-know/140298/#close |website=searchenginejournal.com |accessdate=20 April 2020}}</ref>
| 2004 || || {{w|Google}}, {{w|MSN}}, {{w|Yahoo!}} || Notable update || The three major search engines that are left, {{w|Google}}, {{w|MSN}} and {{w|Yahoo!}}, start incorporating undisclosed page ranking factors into their algorithms.<ref name="A Brief History of SEOd"/>
|-
| 2005 || January || {{w|Google}}, {{w|MSN}}, {{w|Yahoo!}} || Partnership Background || {{w|Google}} unites with {{w|Yahoo!}} and {{w|MSN}} for the {{w|nofollow}} attribute, which is created in part to decrease the amount of spammy links and comments on websites, especially blogs.<ref name="A Brief History of Search & SEO"/>
|-
| 2005 || March 1 || || {{w|SEO contest}} || Loquine Glupe is held. It is hosted by <code>webmaster-forums.co.uk</code>.<ref name="Previous SEO Competitions"/>
| 2006 || September 15 || || SEO tool launch || DeepCrawl is founded. It offers a SEO platform aimed at helping brands to accelerate growth and mitigate losses in organic search performance.<ref>{{cite web |title=DeepCrawl Launches Automator to Enable SEO Quality Assurance |url=https://www.businesswire.com/news/home/20200428005171/en/DeepCrawl-Launches-Automator-Enable-SEO-Quality-Assurance |website=businesswire.com |accessdate=29 June 2020}}</ref>
|-
| 2006 || October || {{w|Google}} || Acquisition Background || {{w|Google}} acquires {{w|YouTube}} for US$1.65 billion. Youtube would ultimately become the second most used search property in the world.<ref name="20 Years of SEO: A Brief History of Search Engine Optimization"/>
|-
| 2006 || December 11 || || Website launch || <code>searchengineland.com</code> launches as a new search news blog.<ref>{{cite web |title=Danny Sullivan’s Search Engine Land Launches December 11 |url=https://searchengineland.com/danny-sullivans-search-engine-land-launches-december-11-9957 |website=searchengineland.com |accessdate=27 June 2020}}</ref>
| 2009 || || || SEO tool launch || AuthorityLabs launches as a SEO rank tracking software.<ref>{{cite web |title=Authority Labs Review |url=http://www.seobook.com/authority-labs-review |website=seobook.com |accessdate=28 June 2020}}</ref><ref>{{cite web |title=Authority Labs Review – Features, Tips, Pricing, and More |url=https://www.digitalexaminer.com/authority-labs-review-features-tips-pricing/ |website=digitalexaminer.com |accessdate=28 June 2020}}</ref>
|-
| 2009 || || {{w|Bing}} || Partnership Background || After Microsoft Live Search becomes {{w|Bing}}, in an unsuccessful attempt to challenge Google’s nearly 70 percent grip of the U.S. search market, {{w|Yahoo!}} and {{w|Microsoft}} join forces to partner on a 10-year search deal (though it would end up being reworked five years later).<ref name="20 Years of SEO: A Brief History of Search Engine Optimization"/>
|-
| 2009 || September–December || || {{w|SEO contest}} || OES Tsetnoc SEO Contest is held.<ref name="Previous SEO Competitions"/>
| 2009 || Year round || {{w|Google}} || Notable update || {{w|Google}} executes between 350 and 550 adjustments to its search algorithm along the year, meaning at least once a day, showing the "rapid advancement required to stay on top if playing the game of SEO at the highest level".<ref name="A brief history of Search Engine Optimization (SEO)"/>
|-
| 2009 || || {{w|Google}} || {{w|GoogleSpamdexing}} || {{w|Google}} announces attempt to stop the effects of {{w|PageRank}} sculpting that come as a result of nofollow links.<ref name="A Brief History of SEOd"/>
|-
| 2010 || January || || SEO tool launch || WooRank launches.<ref>{{cite web |title=So What Is WooRank? |url=https://www.woorank.com/en/p/about |website=woorank.com |accessdate=28 June 2020}}</ref> It is an automated website reviewing tool offering SEO auditing and monitoring.<ref>{{cite web |title=WooRank |url=https://www.capterra.com/p/176630/WooRank/ |website=capterra.com |accessdate=28 June 2020}}</ref>
| 2015 || May 1 || || SEO tool launch || Rank Tracker launches. This tool automatically tracks the users' daily keyword positions movements across all major search engines.<ref>{{cite web |title=RankTracker |url=https://www.crunchbase.com/organization/ranktracker |website=crunchbase.com |accessdate=28 June 2020}}</ref>
|-
| 2015 || May || || Search evolution Background || {{w|Mobile search}} surpasses desktop search.<ref>[https://adwords.blogspot.com/2015/05/building-for-next-moment.html "Inside AdWords: Building for the next moment" ''Google Inside Adwords'' May 15, 2015.]</ref>
|-
| 2015 || || {{w|Google}} | Search evolution | Background || {{w|2015}} is known as the Year of Mobile, the point at which {{w|mobile search}}es overtake {{w|desktop search}} for the first time on {{w|Google}}.<ref name="20 Years of SEO: A Brief History of Search Engine Optimization"/>
|-
| 2015 || October || {{w|Google}} || System launch || {{w|Google}} {{w|RankBrain}} is announced. It is a {{w|machine learning}} (AI) algorithm initially used to try to interpret the 15 percent of searches that Google has never seen before, based on the words or phrases the user has entered.<ref name="20 Years of SEO: A Brief History of Search Engine Optimization"/><ref>{{cite web |title=A Complete Guide to the Google RankBrain Algorithm |url=https://www.searchenginejournal.com/google-algorithm-history/rankbrain/ |website=searchenginejournal.com |accessdate=4 January 2020}}</ref>
| 2019 || January 26 || || {{w|Spamdexing}} || {{w|XRumer}} is released is a piece of software made for spamming online forums and comment sections. "It is marketed as a program for search engine optimization and was created by BotmasterLabs."
|-
| 2020 || || || Search evolution Background || Comscore predicts that by this year, 50% all searches will be voice.<ref name="A brief history of Search Engine Optimization (SEO)"/><ref>{{cite web |title=Stat of the week – Voice Search |url=https://blog.zooma.se/en/blog/stat-of-the-week-voice-search |website=blog.zooma.se |accessdate=7 January 2020}}</ref>
|-
| 2020 || June 23 || || Notable update || {{w|Yoast SEO}} launches as a SEO plugin for WordPress.<ref>{{cite web |title=Yoast SEO Changelog |url=https://yoast.com/wordpress/plugins/seo/change-log-wordpress-seo/ |website=yoast.com |accessdate=29 June 2020}}</ref>
