search engines ; Google , Bing , Yahoo, AOL , ask etc.,

1. The giant in the WWW is 
2. "GOOGLE"
3. Internet company
4. Google is an American multinational corporation specializing in Internet-related services and products. These include online advertising technologies, search, cloud computing, and software. Most of its profits are derived from AdWords. Wikipedia

Google

Most popular search engine.

Bing

www.bing.com/

Bing is a search engine that brings together the best of search and people in your social networks to help you spend less time searching and more time doing.

History of Search engines.

Timeline (full list)
Year	Engine	Current status
1993	W3Catalog	Inactive
	Aliweb	Inactive
	JumpStation	Inactive
	WWW Worm	Inactive
1994	WebCrawler	Active, Aggregator
	Go.com	Active, Yahoo Search
	Lycos	Active
	Infoseek	Inactive
1995	AltaVista	Inactive, redirected to Yahoo!
	Daum	Active
	Magellan	Inactive
	Excite	Active
	SAPO	Active
	Yahoo!	Active, Launched as a directory
1996	Dogpile	Active, Aggregator
	Inktomi	Inactive, acquired by Yahoo!
	HotBot	Active (lycos.com)
	Ask Jeeves	Active (rebranded ask.com)
1997	Northern Light	Inactive
	Yandex	Active
1998	Google	Active
	Ixquick	Active also as Startpage
	MSN Search	Active as Bing
	empas	Inactive (merged with NATE)
1999	AlltheWeb	Inactive (URL redirected to Yahoo!)
	GenieKnows	Active, rebranded Yellowee.com
	Naver	Active
	Teoma	Inactive, redirects to Ask.com
	Vivisimo	Inactive
2000	Baidu	Active
	Exalead	Active
	Gigablast	Active
2003	Info.com	Active
	Scroogle	Inactive
2004	Yahoo! Search	Active, Launched own web search (see Yahoo! Directory, 1995)
	A9.com	Inactive
	Sogou	Active
2005	AOL Search	Active
	GoodSearch	Active
	SearchMe	Inactive
2006	wikiseek	Inactive
	Soso (search engine)	Active
	Quaero	Active
	Ask.com	Active
	Live Search	Active as Bing, Launched as rebranded MSN Search
	ChaCha	Active
	Guruji.com	Inactive
2007	wikiseek	Inactive
	Sproose	Inactive
	Wikia Search	Inactive
	Blackle.com	Active, Google Search
2008	Powerset	Inactive (redirects to Bing)
	Picollator	Inactive
	Viewzi	Inactive
	Boogami	Inactive
	LeapFish	Inactive
	Forestle	Inactive (redirects to Ecosia)
	DuckDuckGo	Active
2009	Bing	Active, Launched as rebranded Live Search
	Yebol	Inactive
	Mugurdy	Inactive due to a lack of funding
	Scout (Goby)	Active
	NATE	Active
	2010	Blekko	Active
Cuil		Inactive
Yandex		Active, Launched global (English) search
2011	YaCy	Active, P2P web search engine
2012	Volunia	Inactive
2013	Halalgoogling	Active, Islamic / Halal filter Search