Zkeleten of Search Sites
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Other Leading Search Engines
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The second-largest search engine on the web by query volume.
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A leading search engine from Microsoft. Formerly Live Search.
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Specialized searching for a variety of media.
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The No. 4 Search Engine - Primarily Chinese language.
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Leading Russian search engine.
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Metasearch Engines
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Blends top results from Google, Live, Yahoo, Ask, About & others.
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Searches Google, Yahoo, LookSmart, Ask.com, MSN search.
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Award-Winning Meta Search Engine.
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Deep search tool.
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Searches non-profit search engines only.
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Allows selection of search engines to use - download required.
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Enterprise search solutions.
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Honorable mention from Search Engine Watch - lacks some common features.
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Second-Tier Search Engines
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Formerly affiliated with Yahoo! Portal included.
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Uses Fast's advanced enterprise search engine.
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Long-established web conglomerate and search engine.
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Realtime spidering provided.
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Search tool can power other sites' search engines.
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French search engine - Provides thumbnail previews of result sites
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Popularity-driven results ranking.
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Highly commercialized approach to search, with Alexa stats.
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Edited directory. Platforms from Google, with paid inclusion.
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"Semantic Web" Search Engines
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Uses natural language analysis and fuzzy logic. Select sources.
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Under construction - Promises next generation natural language analytics
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Semantic ontologies presented. Under Development.
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Organizes results by site metadata.
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Customizable Search Engine
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Uses multifaceted Resource Description Framework to organize ontologies.
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Search Engines with Visual Interface Organizing Results
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Experimental Search Engines
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Allows various views for search results
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Academic Search Engines
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University-edited academic resource engine from the UK.
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Scholarly resources gathered by librarians at the University of California.
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High-quality resources organized by subject.
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Search engine focuses on publications, including patent publications.
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Concentrates on expert resources.
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Active, subject-based librarian assistance from the Library of Congress.
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Archived historical media.
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Concentrates on scientific information.
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Also scientific, with tabs for author and subject searches. International.
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Publications, concentrating on biomedical literature. Some free, some pay.
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Wed Indices & Directories
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Long-standing Open Directory Project - conducted by volunteers.
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Academic resource index.
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Amassed international listing of search engines.
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High-quality resources organized by subject.
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Ambitious historical web backup via the Wayback Machine.
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Edited directory of websites.
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The oldest web directory - founded by Tim Berners-Lee.
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Volunteer-edited, with employee review.
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Founded in 1994 at the University of Buffalo.
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Wiki-based web directory.
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Expert Assistance
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Active, subject-based librarian assistance from the Library of Congress.
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Curated information organized by area of expertise. Q&A format.
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Curated information. Q&A, open forum format.
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Volunteer community, organized by subject.
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Subject-Specific Search Engines
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Leading provider of news search.
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Number 2 provider.
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Includes local news forum. Automatic location detection by IP address.
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Resources automatically pulled, but tagged by volunteers.
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Interface sorting by current viewing trends.
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Claims family-friendly filtering.
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Leading shopping aggregator.
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Shopping aggregator concentrating on major retailers.
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Concentrates on real-time price aggregation and comparison.
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Multi-faceted shopping portal with search features.
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Covers Amazon family of product sites.
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