全球搜索引擎市场份额Global Search Market Share

•  http://marketshare.hitslink.com/search-engine-market-share.aspx?qprid=5

通用搜索引擎大全General Search Engines

• http://www.google.com/ 谷歌Google
• http://www.bing.com/ 微软Bing必应 from MSN Search, Live Search
• http://search.yahoo.com/ 雅虎Yahoo
• http://www.ask.com/ from Ask Jeeves
• http://www.baidu.com/ 百度
• http://www.lii.org/ Websites you can trust
• http://www.kosmix.com/ 简报式搜索引擎，多种媒体

学术类搜索引擎Academic Search Engines

• http://www.scirus.com/ the most comprehensive scientific research tool on the web
• http://www.wolframalpha.com/ Wolfram Alpha
• http://www.wikipedia.org/ Wikipedia维基百科
• http://knol.google.com/k Google Knol -- A Unit of Knowledge
• http://encarta.msn.com/ MSN Encarta
• http://www.base-search.net/ Bielefeld Academic Search Engine
• http://infomine.ucr.edu/ Infomine -- Scholarly Internet Resource Collections
• http://www.intute.ac.uk/ Intute -- database of hand selected Web resources for education and research
• http://www.ojose.com/ OJOSE -- Online JOurnal Search Engine

• 数学搜索引擎Mathematics Search Engines

• 物理学搜索引擎Physics Search Engines

• 计算机与信息科学Computer & Information Science
• http://citeseer.ist.psu.edu/ Computer and Information Science Papers CiteSeer Publications ResearchIndex

• 健康医疗搜索引擎Health and Medical Search Engine
• http://www.mednar.com/mednar/ 

• 音乐搜索引擎Music Search Engine
• http://www.skreemr.com/ The World's Greatest Mp3 Search Engine
• http://www.findsounds.com/ Search the Web for Sounds
• http://www.wuzam.com/ Free Music Downloads 
• http://fizy.com/ easy way to find songs and music videos

• http://www.yovisto.com/
• http://www.academicearth.org/  Video lectures from the world's top scholars
• http://www.researchchannel.org/
• http://www.teachertube.com/ 

自然语言语义搜索引擎Natural Language Search Engines and Semantic Search

• http://hakia.com/
• http://www.lexxe.com/ powered by advanced natural language technology
• http://www.mahalo.com/

特色搜索Cool Search Engines

• http://www.kartoo.com/ The First Interface Mapping Metasearch Engine
• http://www.search-cube.com/
• http://www.viewzi.com/ Power grid preview
• http://www.searchme.com/ Visual Search Engine
• http://www.cooliris.com/ Visual Search Engine
• http://www.quintura.com/ Tag cloud
• http://taggalaxy.de/ Tag galaxy
• http://www.sputtr.com/ Multi Search Engine

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