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SEO Timeline

Timeline created by Richard Falconer in Science and Technology
Event Date: Event Title: Event Description:
Google logo 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 Image search Launches Image Search launches, offering access to 250 million images.
Google logo 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 Froogle Launches (later becomes Google Product Search) Froogle Launches (later becomes Google Product Search)
Google logo 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 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 Google Florida update Google launches the infamous “Florida” update. Many SEOs wrongly conclude that Google has suddenly adopted the Hilltop algorithm.
Florida Google Florida Update Webmaster World Florida Thread
Brandy Google Brandy Update Webmaster World Thread
Google logo 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 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 Google Allegra Update Webmaster World Thread
Bourbon Google Bourbon Update Webmaster World Thread
Spam 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 Google Jagger Update Webmaster World Thread
Spam Google de-indexes more faux directories in volume. Google de-indexes more faux directories in volume.
Google logo 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 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 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 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 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 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 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 PageRank sculpting is born Dan Thies proposes using “rel=’nofollow’” on some internal pages such as shopping cart pages etc.
Google logo 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 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 Google declares war on paid links. Google declares war on paid links.
Google logo 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 Google Font API and Directory Google Font API and directory
Google logo Google Instant Previews Google Instant Previews
Google logo New Hacked Sites Notification in Google Results New Hacked Site Notification in Results
Spanner Google Webmaster Tools Search Query Update GWT Search Queries Update
Spanner Linking Webmaster Tools and Google Analytics Linking Webmaster Tools and Google Analytics
Panda Google Panda Update 1.0 Google's AnnouncementGoogle Panda Update 1.0
Google logo Google Recipe View Google Recipe View
Googlebot Google TV Shows in Video Sitemaps & mRSS Google TV Shows in Video Sitemaps & mRSS
Plusonebutton Google Plus One Button Google Plus One
Spanner Google Page Speed Online w/ Mobile Support Page Speed Online
Panda Google Panda Update 2.0 Google's AnnouncementGoogle Panda Update 2.0
Googlebot Google Instant Previews Flash Support Flash Support for Instant Previews
Panda Google Panda Update 2.1 Google Panda Update 2.1
Spanner Google Page Speed Online New API Page Speed Online New API
Spanner Google Webmaster Tools Easier URL Removal Easier URL Removal
Spanner Google Webmmaster Tools Troubleshoot Instant Previews Google Webmaster Tools Troubleshooting Instant Previews
Plusonebutton Google Plus One For Websites Launched Google PLus One Button
Schema org Schema.org Schema.org
Googlebot Google Authorship Markup Google Authorship Markup
Google logo Google Instant Pages (on Chrome for developers) Google Instant Pages (on Chrome for developers)
Googlebot Google HTTP rel canonical Google HTTP rel canonical
Icann ICANN Approve gTLDs ICANN Approve gTLDs
Panda Google Panda Update 2.2 Google Panda Update 2.2
Blekko 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.