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SEO Timeline

Timeline created by Richard Falconer in Science and Technology
Event Date: Event Title: Event Description:
Google logo small square 1998 Larry Page and Sergey Brin introduce PageRank Larry Page and Sergey Brin introduce PageRank, a Web document citation ranking methodology based on link relationships.
Google logo small square Image search Launches Image Search launches, offering access to 250 million images.
Google logo small square Google launches Google News Google launches Google News, which uses the Hilltop algorithm devised by Krishna Bharat and George A. Mih?il?.
Google Newshttp://www.alternet.org/story/14239/
Google logo small square Froogle Launches (later becomes Google Product Search) Froogle Launches (later becomes Google Product Search)
Google logo small square 2003 “Google bombing” born Bloggers coin the expression “Google bombing” and launch the widespread practice of pointing collaborative links at otherwise irrelevant documents to manipulate query results.
Google logo small square 2003 Google introduces the Supplemental Results Index, Google introduces the Supplemental Results Index, a repository for documents Google doesn’t quite know what to do with. Many of these documents are duplicate content pages.
Google logo small square Google Florida update Google launches the infamous “Florida” update. Many SEOs wrongly conclude that Google has suddenly adopted the Hilltop algorithm.
Florida small square Google Florida Update Webmaster World Florida Thread
Brandy small square Google Brandy Update Webmaster World Thread
Google logo small square Google Sandbox Effect Google adjusts its algorithm to look at links in a new way. An apparent unintended side effect is the so-called “Google Sandbox Effect”, whereby sites with few to no trusted links cannot rank even for their own names.
Google logo small square Google begins updating its index on a weekly basis Google begins updating its index on a weekly basis (until now it had been updating monthly).
Allegro small square Google Allegra Update Webmaster World Thread
Bourbon small square Google Bourbon Update Webmaster World Thread
Spam small square De-indexing directories Google begins de-indexing and/or ignoring links from faux directories and and some Web sites that share certain design features of faux directories.
Jagger small square Google Jagger Update Webmaster World Thread
Spam small square Google de-indexes more faux directories in volume. Google de-indexes more faux directories in volume.
Google logo small square Bigdaddy update Google begins rolling out the Bigdaddy update. Bigdaddy introduces a new infrastructure, a dual-index crawl, and re-engineers the Supplemental Index to absorb many low-PageRank documents.
Google logo small square PageRank is being used to determine the index to which documents are assigned Matt Cutts writes on his blog that PageRank is being used to determine the index to which documents are assigned.
Google logo small square Supplemental Index pages are not fully indexed Search Engine Roundtable reports that Supplemental Index pages are not fully indexed (this is later confirmed by Google).
Spam small square An internal Federal Trade Commission letter discussing paid endorsements is leaked to the news media. An internal Federal Trade Commission letter discussing paid endorsements is leaked to the news media.
Spam small square Matt Cutts suggests that paid links should be disclosed Matt Cutts suggests that paid links should be disclosed, implying that they may fall under the FTC paid endorsement policy.
Google logo small square Universal Search Google follows in the footsteps of A9 and Ask by unveiling the Searchology Update, introducing “Google 3.0″, which emphasizes Universal Search (injecting results from News, Blog, Books, and other search indexes into Main Web search results).
Google logo small square Matt Cutts introduces the concept of “Peanut Butter SEO” Matt Cutts introduces the concept of “Peanut Butter SEO” at the first SMX Advanced conference in Seattle, explaining that “each site gets only so much PageRank” and it can only be spread so far like peanut butter on bread.
Google logo small square PageRank sculpting is born Dan Thies proposes using “rel=’nofollow’” on some internal pages such as shopping cart pages etc.
Google logo small square Google says it is no longer useful to include the “Supplemental Result” label in search results. Google says it is no longer useful to include the “Supplemental Result” label in search results.
Google logo small square PageRank Sculpting goes insane Dan Thies revises his internal nofollow position to favor the use of nofollow on more internal pages. The “PageRank sculpting” controversy goes into overdrive from this point on as the SEO community divides.
Spam small square Google declares war on paid links. Google declares war on paid links.
Google logo small square Supplemental Index Still Alive Google’s Supplemental Index still alive and still preventing legitimate content from ranking above less relevant results in the Main Web Index.
Spanner small square Google Font API and Directory Google Font API and directory
Google logo small square Google Instant Previews Google Instant Previews
Google logo small square New Hacked Sites Notification in Google Results New Hacked Site Notification in Results
Spanner small square Google Webmaster Tools Search Query Update GWT Search Queries Update
Spanner small square Linking Webmaster Tools and Google Analytics Linking Webmaster Tools and Google Analytics
Panda small square Google Panda Update 1.0 Google's AnnouncementGoogle Panda Update 1.0
Google logo small square Google Recipe View Google Recipe View
Googlebot small square Google TV Shows in Video Sitemaps & mRSS Google TV Shows in Video Sitemaps & mRSS
Plusonebutton small square Google Plus One Button Google Plus One
Spanner small square Google Page Speed Online w/ Mobile Support Page Speed Online
Panda small square Google Panda Update 2.0 Google's AnnouncementGoogle Panda Update 2.0
Googlebot small square Google Instant Previews Flash Support Flash Support for Instant Previews
Panda small square Google Panda Update 2.1 Google Panda Update 2.1
Spanner small square Google Page Speed Online New API Page Speed Online New API
Spanner small square Google Webmaster Tools Easier URL Removal Easier URL Removal
Spanner small square Google Webmmaster Tools Troubleshoot Instant Previews Google Webmaster Tools Troubleshooting Instant Previews
Plusonebutton small square Google Plus One For Websites Launched Google PLus One Button
Schema org small square Schema.org Schema.org
Googlebot small square Google Authorship Markup Google Authorship Markup
Google logo small square Google Instant Pages (on Chrome for developers) Google Instant Pages (on Chrome for developers)
Googlebot small square Google HTTP rel canonical Google HTTP rel canonical
Icann small square ICANN Approve gTLDs ICANN Approve gTLDs
Panda small square Google Panda Update 2.2 Google Panda Update 2.2
Blekko small square Blekko Zorro Update Blekko Zorro Update
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URL only results Google dumps millions of documents from its index, resulting in many queries that are flooded with so-called “URL-only” results, although many older sites simply vanish altogether or show 2-year-old data. The search results return to normal around May.