- 1992 - Founds The WWW Virtual Library.
- 2000 - Co-founds Exalead.
- 1998 - Founds Ixquick.
- 2000 - Co-founds Exalead.
- 1996 - Begins working on BackRub, Google's predecessor.
- 1998 - Google launched.
- 2003 - Creates Nutch an open source web crawler with Doug Cutting.
- 2003 - Launches what will become YaCy, a distributed search engine.
- 1995 - Launches MetaCrawler.
- 2013 - Launches Qwant.
- 1999 - Writes Lucene.
- 2003 - Creates Nutch an open source web crawler with Mike Cafarella.
- 1996 - Working on "popularity engine" at MIT that becomes Direct Hit Technologies.
- 1998 - Direct Hit Technologies released.
- 1998 - Launches AlltheWeb.
- 1995 - Co-founds LookSmart.
- 1995 - Launches MetaCrawler.
- 1994 - Co-founds Yahoo!
- 1993 - Creates JumpStation.
- 2005 - Launches Faroo, a distributed search engine.
- 1998 - Launches GoTo (Overture).
- 2004 - Launches SNAP.
- 1997 - One of the core contributors to FAST.
- 2000 - Launches Baidu.
- 1996 - Founds InfoSpace.
- 1999 - Launches meta search engine Anvish.
- 2000 - Launches InfraSearch, a distributed search engine.
- 1994 - Launches Infoseek
- 1993 - Creates Aliweb.
- 1994 - Proposes Robots Exclusion Standard.
- 1993 - Contributed to Architext, eventually to become Excite.
- 2007 - Launches Zakta, a collaborative search engine.
- 2013 - Launches Qwant.
- 1997 - One of the core contributors to FAST.
- 1996 - Creates RankDex site-scoring algorithm.
- 2000 - Launches Baidu.
- 1993 - Contributed to Architext, eventually to become Excite.
- 1994 - Launches Lycos.
- 1994 - Launches World-Web Web Worm
- 1993 - Contributed to Architext, eventually to become Excite.
- 2006 - Co-founds Powerset a natural language search engine.
- 1993 - Creates first web search engine, W3Catalog.
- 1996 - Begins working on BackRub, Google's predecessor.
- 1998 - Google launched.
- 2006 - Co-founds Powerset a natural language search engine.
- 1994 - Launches WebCrawler.
- 1993 - Contributed to Architext, eventually to become Excite.
- 2013 - Launches Qwant.
- 1997 - Co-founds Yandex.
- 1999 - Launches meta search engine Anvish.
- 1998 - Launches Gnuhoo (Open Directory Project/DMoZ).
- 2010 - Cofounds Blekko.
- 2004 - Launches Mojeek.
- 1993 - Contributed to Architext, eventually to become Excite.
- 2006 - Co-founds Powerset a natural language search engine.
- 1995 - Co-founds LookSmart.
- 1998 - Launches Gnuhoo (Open Directory Project/DMoZ).
- 1998 - Launches Vinden.nl (ZapMeta).
- 1993 - Contributed to Architext, eventually to become Excite.
- 1997 - Co-founds Yandex.
- 2000 - Launches InfraSearch, a distributed search engine.
- 2000 - Founds Gigablast.
- 1994 - Co-founds Yahoo!
- 1996 - Working on "popularity engine" at MIT that becomes Direct Hit Technologies.
- 1998 - Direct Hit Technologies released.
- Bill T. Gross - GoTo, TweetUp