99 Resources to Research & Mine the Invisible Web
College researchers often need more than Google and Wikipedia to get the job done. To find what you're looking for, it may be necessary to tap into the invisible web, the sites that don't get indexed by broad search engines. The following resources were designed to help you do just that, offering specialized search engines, directories, and more places to find the complex and obscure. Search Engines Whether you're looking for specific science research or business data, these search engines will point you in the right direction. Turbo10: On Turbo10, you'll be able to search more than 800 deep web search engines at a time. Databases Tap into these databases to access government information, business data, demographics, and beyond. GPOAccess: If you're looking for US government information, tap into this tool that searches multiple databases at a time. Catalogs If you're looking for something specific, but just don't know where to find it, these catalogs will offer some assistance. Directories
List of academic databases and search engines
From Wikipedia, the free encyclopedia This article contains a representative list of notable databases and search engines useful in an academic setting for finding and accessing articles in academic journals, institutional repositories, archives, or other collections of scientific and other articles. Databases and search engines differ substantially in terms of coverage and retrieval qualities.[1] Users need to account for qualities and limitations of databases and search engines, especially those searching systematically for records such as in systematic reviews or meta-analyses.[2] As the distinction between a database and a search engine is unclear for these complex document retrieval systems, see: the general list of search engines for all-purpose search engines that can be used for academic purposesthe article about bibliographic databases for information about databases giving bibliographic information about finding books and journal articles. Operating services[edit] [edit] [edit]
ERIC – World’s largest digital library of education literature
Database search engine
There are several categories of search engine software: Web search or full-text search (example: Lucene), database or structured data search (example: Dieselpoint), and mixed or enterprise search (example: Google Search Appliance). The largest web search engines such as Google and Yahoo! utilize tens or hundreds of thousands of computers to process billions of web pages and return results for thousands of searches per second. High volume of queries and text processing requires the software to run in highly distributed environment with high degree of redundancy. Searching for text-based content in databases or other structured data formats (XML, CSV, etc.) presents some special challenges and opportunities which a number of specialized search engines resolve. Database search engines were initially (and still usually are) included with major database software products. See also[edit] External links[edit] Searching for Text Information in Databases
100 Useful Tips and Tools to Research the Deep Web
By Alisa Miller Experts say that typical search engines like Yahoo! and Google only pick up about 1% of the information available on the Internet. The rest of that information is considered to be hidden in the deep web, also referred to as the invisible web. Meta-Search Engines Meta-search engines use the resources of many different search engines to gather the most results possible. SurfWax. Semantic Search Tools and Databases Semantic search tools depend on replicating the way the human brain thinks and categorizes information to ensure more relevant searches. Hakia. General Search Engines and Databases These databases and search engines for databases will provide information from places on the Internet most typical search engines cannot. DeepDyve. Academic Search Engines and Databases The world of academia has many databases not accessible by Google and Yahoo! Google Scholar. Scientific Search Engines and Databases Science.gov. Custom Search Engines CustomSearchEngine.com. Del.icio.us.
The Internet map
List of People search engines
This is a list of articles about search engines, including web search engines, selection-based search engines, metasearch engines, desktop search tools, and web portals and vertical market websites that have a search facility for online databases. By content/topic General P2P search engines Geographically limited scope Semantic Accountancy IFACnet Business Computers Enterprise Funnelback: Funnelback SearchJumper 2.0: Universal search powered by Enterprise bookmarkingOracle Corporation: Secure Enterprise Search 10gQ-Sensei: Q-Sensei EnterpriseTeraText: TeraText Suite Fashion Fashion Net Food/Recipes Genealogy Mocavo.com: family history search engine Mobile/Handheld Job Legal Medical News People Real estate / property Television TV Genius Video Games Wazap (Japan) By information type Search engines dedicated to a specific kind of information Forum Omgili Blog Multimedia Source code BitTorrent Cloud Search engines listed below find various types of files that have been stored in the cloud and made publicly available. Email
List of search engines
This is a list of articles about search engines, including web search engines, selection-based search engines, metasearch engines, desktop search tools, and web portals and vertical market websites that have a search facility for online databases. By content/topic General P2P search engines Geographically limited scope Semantic Accountancy IFACnet Business Computers Electronics Enterprise Funnelback: Funnelback SearchJumper 2.0: Universal search powered by Enterprise bookmarkingOracle Corporation: Secure Enterprise Search 10gQ-Sensei: Q-Sensei EnterpriseTeraText: TeraText Suite Fashion Fashion Net Food/Recipes Genealogy Mocavo.com: family history search engine Mobile/Handheld Job Legal Medical News People Real estate / property Television TV Genius Video Games Wazap (Japan) By information type Search engines dedicated to a specific kind of information Forum Omgili Blog Multimedia Source code BitTorrent Cloud Open Drive Email Maps Price Question and answer Human answers Automatic answers Natural language By model Search appliances
