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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.
OpenSearchServer. OpenSearchServer is an open source application server allowing development of index-based applications like search engines.
Available since April 2009 on SourceForge for download, OpenSearchServer was developed under the GPL v3 license and offers a series of full text lexical analyzers and can be installed on different platforms (Windows, Linux, Macintosh). After being initiated as an inhouse project in a private media group, OpenSearchServer is now supported by Jaeksoft, a commercial company launched in February 2010 and providing services and roadmap guidance for OpenSearchServer. Search engine and human edited web directory KartOO. FAROO Peer-to-peer Web Search. The Peer to Peer Search Engine: Home. List of social bookmarking websites. Defunct sites[edit] See also[edit]
Metasearch engine. A metasearch engine is a search tool[1][2] that sends user requests to several other search engines and/or databases and aggregates the results into a single list or displays them according to their source.
Metasearch engines enable users to enter search criteria once and access several search engines simultaneously. Metasearch engines operate on the premise that the Web is too large for any one search engine to index it all and that more comprehensive search results can be obtained by combining the results from several search engines. This also may save the user from having to use multiple search engines separately. The process of fusion also improves the search results.[3] The term "metasearch" is frequently used to classify a set of commercial search engines, see the list of Metasearch engine, but is also used to describe the paradigm of searching multiple data sources in real time. Operation[edit] architecture of a metasearch engine. Search engine indexing.
Popular engines focus on the full-text indexing of online, natural language documents.[1] Media types such as video and audio[2] and graphics[3] are also searchable. Meta search engines reuse the indices of other services and do not store a local index, whereas cache-based search engines permanently store the index along with the corpus. Unlike full-text indices, partial-text services restrict the depth indexed to reduce index size. Larger services typically perform indexing at a predetermined time interval due to the required time and processing costs, while agent-based search engines index in real time. Indexing[edit] The purpose of storing an index is to optimize speed and performance in finding relevant documents for a search query.
Index design factors[edit] Search engine technology. A search engine is an information retrieval software program that discovers, crawls, transforms and stores information for retrieval and presentation in response to user queries.[1] A search engine normally consists of four components e.g. search interface, crawler(also known as a spider or bot),indexer, and database.
The crawler traverses a document collection, deconstructs document text, and assigns surrogates for storage in the search engine index. Online search engines store images, link data and metadata for the document as well. History of Search Technology[edit] Ucation Resources Information Center. Scientific Search Engine - www.OJOSE.com - Online JOurnal Search Engine - Where science meets the web :-)
Academic research, citation reports and discussion lists. 5000 Best Things - Movies, Books, Websites, Videos, Tools, Pictures. Asternitix. Twitter Search, Monitoring, & Analytics. Search. Search Engine Land: Must Read News About Search Marketing & Search Engines. 60 Awesome Search Engines For Serious Writers. June 20th, 2010 Finding the information you need as a writer shouldn’t be a chore.
Luckily, there are plenty of search engines out there that are designed to help you at any stage of the process, from coming up with great ideas to finding a publisher to get your work into print. Both writers still in college and those on their way to professional success will appreciate this list of useful search applications that are great from making writing a little easier and more efficient. Professional Find other writers, publishers and ways to market your work through these searchable databases and search engines. Writing These helpful tools will help you along in the writing process. Research Try out these tools to get your writing research done in a snap. Google Scholar: With this specialized search engine from Google, you’ll only get reliable, academic results for your searches.WorldCat: If you need a book from the library, try out this tool. Reference Need to look up a quote or a fact? Niche Writers. 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. CaptionTube: Home. Sites Like. IceRocket real-time search.
Directory Search Portals /Directories/ Intute - Home. Stuart1662. Darknet - The Darkside - Ethical Hacking, Penetration Testing & Computer Security. Bookmarking. Librarian Chick / FrontPage. 60 Awesome Search Engines for Serious Writers. Invisible Web Directory. List of academic databases and search engines. Wikipedia list article 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.
Discover over 70,000+ databases and specially search engines. List of online databases. 60 Awesome Search Engines for Serious Writers. 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. So how can you find all the rest of this information? This list offers 100 tips and tools to help you get the most out of your Internet searches. 99 Resources to Research & Mine the Invisible Web. Reserch Tools Search Engine.
HLWIKI Canada. Sites Like - Find and share similar websites. People Search. Search Engine Marketing (SEM), Paid Search Advertising (PPC) & Search Engine Optimization (SEO) - Search Engine Watch (#SEW) Emerald. AOL.com - Netscape. Addictomatic: Inhale the Web. Dialog Online Documentation.
About Web Search. Yahoo Search - Web Search. Mamma. Free Internet Research Resources. Page Last Updated: March 10, 2014 at 9:23 pm Click On Each Category Below for Listings of Free Internet Search Resources TII Online Investigator’s Checklist™ The TII Online Investigator’s Checklist™ is designed to be an active reference guide to assist you with current and future online investigations and should be used in conjunction with the Online Research Framework™ TII Online Research Framework™The TII Online Research Framework™ is designed to assist you with current and future online investigations and should be used in conjunction with the Online Investigators Checklist™ This resource section is a list of third party sites and applications that we have reviewed and used for our own purposes.
We do not guarantee, express any warranty or imply any affiliation or endorsement to these resources nor can we assure that these resources will remain online or reliable in the future. Search Marketing Advice, News, and Tutorials. Jesse Ruderman. All Search Engines UK - All Search Engines Super Search. SEO Tools - Search Engine Optimization Tools. Find search engines from across the world - Search Engine Colossus. Alternative Search Engine. SEO Book.com ~ SEO Training Made Easy. Search Engine Guide: Search Engine Marketing and Social Media Marketing Advice. SEOmoz is now Moz. Software and Community for Better Marketing. - Moz.
Keyword Research Tools from Wordtracker. SEO Chat - Search Engine Optimization News and Talk. Search Engine Land: Must Read News About Search Marketing & Search Engines. The Pulse Of The Search Marketing Community. Search Engine Directory. Google Guide Cheatsheet. ! Google Ultimate Interface. About Google In 1996-1997, Larry Page and Sergey Brin came up with an algorithm to rank web pages, called PageRank. Realizing the potential to improve search engines, they tried and failed to sell the technology to any. So they founded Google, which in an incredibly short period of time has become one of the world’s most powerful companies.
While primarily known as a search engine, Google now makes a wide variety of web-based and other software and is known for investing in wide-ranging projects outside their core such as through their philanthropic arm, Google.org. Their products are available in almost every country and in a very large number of languages. Google’s enourmously successful advertising business accounts for almost all of their revenue and allows Google to subsidize many other ideas. Google is a market and quality leader in web search, online maps, online video (through YouTube), and areas. Alternatives to Google Why not use nothing but Google all the time? Google Guide Quick Reference: Google Advanced Operators (Cheat Sheet) The following table lists the search operators that work with each Google search service. Click on an operator to jump to its description — or, to read about all of the operators, simply scroll down and read all of this page.
The following is an alphabetical list of the search operators. Internet Catalogue Of How-To Sites.