Search Engines 
QuickSearch! Enter a term, choose a search engine from the dropdown and Click 'Go.'
Learn how to choose the best search engine.
Cluster Search
Cluster Search engines us a clustering algorithm to group search results together based on textual and linguistic similarity. The results are usually grouped into sub-categories useful for narrowing the search result.
Clusty
Clusty automatically clusters results into categories that are automatically selected from the words and phrases contained in the search results themselves.
Vivisimo
Vivísimo creates innovative software to access and cluster the world's information for better search and discovery.
Directory
A directory is a method of organizing sites by category. Typically the directory structure is created and sites are reviewed and entered into the appropriate categories by humans.
DMOZ Open Directory Project
The DMOZ Open Directory Project is building the largest human-edited directory of the web, maintained by thousands of voluntary editors.
Infomine
Scholarly Internet Resource Collections built by librarians at the University of California and other universities and colleges. It includes, but is not limited to, databases, electronic journals, electronic books, bulletin boards, listservs, online library card catalogs, articles and directories of researchers.
Intute
Intute is a free online service providing you with access to the very best Web resources for education and research. The service is created by a network of UK universities and partners. Subject specialists select and evaluate the websites in their database and write high quality descriptions of the resources.
Librarian's Index to the Internet
The Librarians Index to the Internet (LII) is a searchable, annotated subject directory of more than 8,300 Internet resources selected and evaluated by librarians for their usefulness to users of public libraries. LII is meant to be used by both librarians and non-librarians as a reliable and efficient guide to described and evaluated Internet resources.
General Search
General Search engines use a computer automated process to find information on the web. They "crawl" or "spider" the web, place the results in a database, and users search through the database.
All the Web
Search for web pages, news, pictures, audio and video.
AltaVista
AltaVista is a search engine offering general web search, image search, search for audio and video, news search and a translation service.
Brain Boost
BrainBoost is a Question Answering search engine. It was specifically designed to answer questions, asked in plain English.
Excite
Search for news, MP3s, pictures, and information.
The most popular search engine on the Web.
Lycos
Lycos offers a variety of search services.
Soople
This site is meant for those not yet familiar with all the functions and required syntaxes offered by Google for searching on the web. Soople provides an easy to use interface to Google's Advanced Search features!
Teoma
This search engine adds a new dimension and level of authority to search results through its breakthrough approach, known as Subject-Specific Popularity.
Yahoo
The Yahoo! portal offers email, a messaging solution, calendar, shopping, auctions, communities, weather and a range of other services for Internet users.Meta-Search
In a meta-search engine the query is submitted to more than one search engine or directory, and results are reported from all the engines, possibly after removal of duplicates and sorting .
Dogpile
Dogpile makes searching more of the Web easier by returning the best results from these leading engines: Google · Yahoo · Ask Jeeves About · LookSmart · Teoma Overture · FindWhat
Mamma
Mamma.com is a "smart" metasearch engine - every time you type in a query Mamma simultaneously searches a variety of engines, directories, and deep content sites, properly formats the words and syntax for each, compiles their results in a virtual database, eliminates duplicates, and displays them in a uniform manner according to relevance.
MetaCrawler
MetaCrawler uses innovative metasearch technology to search the Internet's top search engines, including Google, Yahoo, Ask Jeeves, About, FindWhat, LookSmart, and many more.Sci/Tech Search
BitPipe
Bitpipe is the leading destination for busy professionals who need technology white papers, webcasts, case studies and IT product information -- all the IT information and resources you need to make smart enterprise IT purchasing decisions
Chemie
Helps you to find products, companies, news, chemicals, jobs, literature, software, and events relating to chemistry.
Chmoogle™
Chmoogle™ is the leading open-access chemistry search engine.
NASA Galaxie-Glenn Library
NASA GALAXIE is the integrated information system for NASA libraries. It indexes books, journals, atlases, conferences, books-on-tape, video recordings, software, images, and print and electronic documents. It can only be accessed from a NASA computer.
Physical Sciences Information Gateway
PSIgate is a free service that offers access to high quality Web resources in the physical sciences; there are currently 13279 resources in astronomy, chemistry, earth sciences, materials sciences, physics, and science history and policy.
Scirus
Search engine geared to scientific information.Visual Search
Visual Search engines are both meta-search engines and clustering search engines with the added dimension of displaying search results in a visual/spatial manner. This allows realtionships between terms to be seen at a glance. This should not be confused with an image search.
Grokker
Grokker searches Yahoo! and intelligently clusters information into concepts related to the text entered.
KarTOO
KartOO is a metasearch engine with visual display interfaces. When you click on OK, KartOO launches the query to a set of search engines, gathers the results, compiles them and represents them in a series of interactive maps through a proprietary algorithm.
Mooter
Groups web search results visually/spatially in clusters.
WebBrain
WebBrain lets you search the Web visually, so you can explore a dynamic picture of related information, instead of searching through long lists of text.

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