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June
- The first web robot. The Perl-based World Wide Web Wanderer
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Archie
- Alan Emtage, Downloads the directory listings of all the files located on public anonymous FTP sites, creates a searchable database of a lot of file names.
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Veronica and Jughead
- search the file names and titles stored in Gopher index systems. Veronica provides a keyword search of most Gopher menu titles in the entire Gopher listings. Jughead is a tool for obtaining menu information from specific Gopher servers
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Yahoo
April 1994. Web directory -
The beginning of Ask.com
1997
New natural language-based web search engine -
Google.com
September 15 1997 -
yandex.ru
- Russian
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MSN search
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Baidu
- Chinese
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Yahoo is being replaced by Bing
2009 -
Google Panda
- Affects 12% of search quarries. continues with the earlier work of cracking down on spam, Content farms, scrapers, and websites with a high ad-to-content ratio.
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Search algorithm update, user experience
2012.
Google launches Search Plus Your World, a deep integration of one's social data into search -
Search algorithm update
April 2012.
Google launches its "Webspam update" which would soon become known as Google Penguin -
Google launches its "Webspam update" which would soon become known as Google Penguin
May 2012.
Google starts rolling out Knowledge Graph, used by Google internally to store semantic relationships between objects. Google now begins displaying supplemental information about objects related to search queries on the side. -
Search algorithm update
August
Google releases Google Hummingbird, a core algorithm update that may enable more semantic search and more effective use of the Knowledge Graph in the future -
World Wide Web Worm
March 1994 -
Web Crawler
April 1994.
Allows users to search for any word in any webpage -
Back-Rub
1996.
Larry Page and Sergey Brin begin working on BackRub, the predecessor to Google Search. -
Microsoft starts using MSN
2004-2005