A - B

• Abandoned & Little-Known Airfields
  Abandoned & Little-Known Airfields
  Abandoned & Little-Known Airfields is a website started by Paul Freeman in 1999 that is an online database which aims to detail information on every airport in the United States....
  
  
• Academic Publications eJournal
• Acronym Finder
  Acronym Finder
  Acronym Finder is an online database of abbreviations and their meanings. It includes over 900,000 human-edited and verified definitions, many of them related to computers, technology, telecommunications, science, medicine and the military...
  
  
• Aeiou Encyclopedia
  Aeiou Encyclopedia
  AEIOU is a free online collection of reference works in both German and English about Austria-related topics.-Background:...
  
  
• African American Registry
  African American Registry
  African American Registry is a non-profit educational resource for the learning community to supply teachers with the information, method, and materials to provide a solid educational background in black history and heritage, in the sciences, business, the arts, and all facets of academics and...
  
  
• Airdisaster.com
  Airdisaster.com
  AirDisaster.com is a website devoted to accidents and incidents on commercial airliners. It includes voice recordings, accident videos, reports and articles about a number of airliner crashes. It also includes crash statistics by company, plane model and year...
  
  
• Airiti Inc
  Airiti Inc
  Airiti Incorporation headquartered in Taipei, Taiwan, is the leading Chinese e-content provider of Chinese academic e-journals, Taiwanese academic e-journals, classical art images to more than 450 libraries in 2006 and has extended to more than 72,000 libraries in 112 countries and territories...
  
  
• Airliners.net
  Airliners.net
  Airliners.net is an aviation website founded by Johan Lundgren, Sweden, in 1997, evolving from his previous Pictures of Modern Airliners site started in 1994...
  
  
• All Media Guide
  All Media Guide
  All Media Guide , is the company which owns and maintains Allmusic, Allgame and Allmovie. AMG was founded in 1990 by popular-culture archivist Michael Erlewine....
  
  
• Allgame
  Allgame
  Allgame is a commercial database of information about arcade games, video games and console manufacturers.Allgame is owned by All Media Guide, along with Allmusic and Allmovie....
  
  
• Allmovie
• Allmusic
• American National Corpus
  American National Corpus
  The American National Corpus is a text corpus of American English currently containing 22 million words written and spoken data produced since 1990. The ANC may at some point of time include a range of genres comparable to the British National Corpus...
  
  
• Amiga Games Database
  Amiga Games Database
  The Amiga Games Database is a web site containing reviews of games for the Amiga range of computers.The site is run by Angus Manwaring from the UK and is an entirely fan-based effort...
  
  
• Animal Diversity Web
  Animal Diversity Web
  Animal Diversity Web is an online database that collects the natural history, classification, species characteristics, conservation biology, and distribution information of thousands of species of animals...
  
  
• Animal Genome Size Database
  Animal Genome Size Database
  The Animal Genome Size Database is a comprehensive catalogue of published genome size estimates for vertebrate and invertebrate animals. It was created in 2001 by Dr. T. Ryan Gregory of the University of Guelph in Canada. As of September 2005, the database contains data for over 4,000 species of...
  
  
• Arachne (Archaeological Database)
  Arachne (Archaeological Database)
  Arachne is the central object-database of the German Archaeological Institute . In 2004 the DAI and the Cologne Digital Archaeology Laboratory at the University of Cologne joined the effort to support Arachne as a tool for free internet-based research.-Definition:Arachne's database design uses a...
  
  
• ArchINFORM
  ArchINFORM
  ArchINFORM is an online database for international architecture, originally emerging from records of interesting building projects from architecture students from the University of Karlsruhe, Germany....
  
  
• Archive site
  Archive site
  In web archiving, an archive site is a website that stores information on, or the actual, webpages from the past for anyone to view.-Common techniques:Two common techniques are #1 using a web crawler or #2 user submissions....
  
  
• ArtCyclopedia
  ArtCyclopedia
  Artcyclopedia is an online database of museum-quality fine art founded by Canadian John Malyon. The Artcyclopedia only deals with art that can be viewed online, and indexes 2,300 art sites , with links to around 180,000 artworks by 8,500 renowned artists. The site has also started to compile a list...
  
  

• Bank of English
  Bank of English
  The Bank of English is the name of the COBUILD corpus, a collection of English texts. These are mainly British, but American and Australian data are also included....
  
  
• BaseBear
• Beilstein database
  Beilstein database
  The Beilstein database is the largest database in the field of organic chemistry, in which compounds are uniquely identified by their Beilstein Registry Number. The database covers the scientific literature from 1771 to the present and contains experimentally validated information on millions of...
  
  
• Bibliopage.com
  Bibliopage.com
  BiblioPage.com is an Amazon.com affiliate site with a database of books gathered from libraries across the world using the NISO z39.50 protocol for accessing bibliographic databases. BiblioPage.com uses the YAZ toolkit from to access and manipulate bibliographic information.The main idea behind...
  
  
• Bibliotek.dk
  Bibliotek.dk
  bibliotek.dk is a Danish Internet service that allows for search in the material across near all public Danish libraries. It is a library database.Search targets include books, newspaper and journal articles, LP records, DVD, CD-roms, etc....
  
  
• Big Cartoon DataBase
  Big Cartoon DataBase
  The Big Cartoon DataBase is an online database of information about animated cartoons, animated feature films, animated television shows and cartoon shorts....
  
  
• Big Comic Book DataBase
  Big Comic Book DataBase
  The Big Comic Book DataBase is a website containing information about comic books, and run by the maintainers of the Big Cartoon DataBase. , the database contains information on over 100,000 books in 5000+ series, including over 35,000 cover scans....
  
  
• Bioinformatic Harvester
• BoardGameGeek
  BoardGameGeek
  BoardGameGeek is a website that was founded in January 2000 by Scott Alden and Derk Solko as a resource for the board gaming hobby. The database holds reviews, articles, and session reports for over 45,000 different games, expansions, and designers. BoardGameGeek includes German-style board games,...
  
  
• BugMeNot
  BugMeNot
  BugMeNot is an internet service that provides usernames and passwords to let Internet users bypass mandatory free registration on websites. Started in August 2003 by an anonymous person, later revealed to be Guy King, it aims to allow Internet users to access websites that have registration walls ...
  
  

C - F

• CAMPUS (database)
  CAMPUS (database)
  CAMPUS is a multilingual database for the properties of plastics. It is considered worldwide leading regarding the level of standardization and therefore comparability of plastics properties. It also supports to a large extent diagrams. CAMPUS is based on ISO standards 10350 for single point value...
  
  
• Caspio
  Caspio
  Caspio, Inc. is a provider of a cloud database and application building platform called Caspio Bridge. The company also develops pre-built web applications...
  
  
• Catholic-Hierarchy
• CellarTracker
  CellarTracker
  CellarTracker is a website that stores information about wines and wine collections. Created in 2003 by Eric LeVine, a former Microsoft program manager, CellarTracker has grown to be one of the world's most comprehensive wine databases...
  
  
• ChEBI
  ChEBI
  Chemical Entities of Biological Interest, also known as ChEBI, is a database and ontology of molecular entities focused on 'small' chemical compounds, that is part of the Open Biomedical Ontologies effort...
  
  
• Chemical Abstracts Service
  Chemical Abstracts Service
  Chemical Abstracts is a periodical index that provides summaries and indexes of disclosures in recently published scientific documents. Approximately 8,000 journals, technical reports, dissertations, conference proceedings, and new books, in any of 50 languages, are monitored yearly, as are patent...
  
  
• ChessGames.com
  Chessgames.com
  ChessGames.com is a large chess community on the Internet, with over 156,000 members. The site maintains a large database of historical chess games where every game has a distinct message board for comments and analysis. Basic membership is free and the site is open to players at all levels of...
  
  
• Cidob Foundation
  CIDOB Foundation
  CIDOB, acronym of Barcelona Centre for International Affairs , is a Catalan think-tank based in Barcelona, Spain, dedicated to research, document and divulge contents of the different areas of international relations and...
  
  
• Cinema and Science
  Cinema and Science
  Cinema and Science is a European educational project of the Austrian physicist Heinz Oberhummer. It is funded by the European Commissionand was awarded of being a star project...
  
   (CISCI)
• CiteSeer
  CiteSeer
  CiteSeer was a public search engine and digital library for scientific and academic papers. It is often considered to be the first automated citation indexing system and was considered a predecessor of academic search tools such as Google Scholar and Microsoft Academic Search. It was replaced by...
  
  
• The Collection of Computer Science Bibliographies
  The Collection of Computer Science Bibliographies
  The Collection of Computer Science Bibliographies is one of the oldest bibliography collections freely accessible on the Internet. It is a collection of bibliographies of scientific literature in computer science and mathematics from various sources, covering most aspects of computer science...
  
  
• Comic book price guide
  Comic book price guide
  Comic book price guides are generally monthly, quarterly, or yearly publications which detail the changes in the resale value of a comic over a period of time...
  
  
• Comics Buyer's Guide
  Comics Buyer's Guide
  Comics Buyer's Guide , established in 1971, is the longest-running English-language periodical reporting on the American comic book industry...
  
  
• Credo Reference
• Croatian National Corpus
  Croatian National Corpus
  Croatian National Corpus is the biggest and the most important corpus of the Croatian language. Its compilation started in 1998 at the Institute of Linguistics of the Faculty of Humanities and Social Sciences, University of Zagreb following the ideas of Marko Tadić...
  
  
• Current Biography
  Current Biography
  Current Biography is an American monthly magazine published by the H. W. Wilson Company of The Bronx, New York, a publisher of reference books, that appears every month except December. Current Biography contains profiles of people in the news and includes politicians, athletes, businessmen, and...
  
  

• DataGuidance
  DataGuidance
  OverviewDataGuidance is an online database that brings together data protection and privacy legislation, official guidance and codes of practice globally...
  
  
• DBLP
  DBLP
  DBLP is a computer science bibliography website hosted at Universität Trier, in Germany. It was originally a database and logic programming bibliography site, and has existed at least since the 1980s. DBLP listed more than 1.3 million articles on computer science in January 2010...
  
  
• DIALOG
• Dialog (online database)
  Dialog (online database)
  Dialog is an online information service owned by ProQuest, who acquired it from Thomson Reuters in mid-2008.Dialog was one of the predecessors of the World Wide Web as a provider of information, though not in form. The earliest form of the Dialog system was completed in 1966 under the direction of...
  
  
• Dictionary of Canadian Biography
  Dictionary of Canadian Biography
  The Dictionary of Canadian Biography is a dictionary of biographical entries for individuals who have contributed to the history of Canada. The DCB, which was initiated in 1959, is a collaboration between the University of Toronto and Université Laval...
  
  

• Earth Human STR Allele Frequencies Database
  Earth Human STR Allele Frequencies Database
  The Earth Human STR Allele Frequencies Database is a scientific project based on a dynamic web interface and a relational database management system...
  
   (EHSTRAFD)
• EBSCO
• EMBASE
  EMBASE
  Embase is an online information source of published literature designed to supportinformation managers and pharmacovigilance in complying with the regulatoryrequirements of a licensed drug. Through its unique and comprehensive content coverage,...
  
  
• Encyclopedia Astronautica
  Encyclopedia Astronautica
  The Encyclopedia Astronautica is a reference web site on space travel. A comprehensive catalog of vehicles, technology, astronauts, and flights, it includes information from most countries that have had an active rocket research program, from Robert Goddard to the NASA Space shuttle to the Soviet...
  
  
• Encyclopedia Mythica
  Encyclopedia Mythica
  Encyclopedia Mythica is an internet encyclopedia of folklore, mythology, and religion. It covers the mythology of most of the world, with sections spanning Europe, Africa, Asia, the Middle East, both North and South America, and Oceania. This encyclopedia was founded in June 1995 as a small site...
  
  
• English Short Title Catalogue
  English Short Title Catalogue
  The English Short Title Catalogue or ESTC is a short title catalogue of works published between 1473 and 1800, mainly in Britain and North America, and primarily in English, from the collections of the British Library and other libraries....
  
  
• Entrez
  Entrez
  The Entrez Global Query Cross-Database Search System is a powerful federated search engine, or web portal that allows users to search many discrete health sciences databases at the National Center for Biotechnology Information website...
  
  
• Everyone's a Critic
  Everyone's a Critic
  Everyone's a Critic is a film community website. It began as an experiment utilizing a collaborative filtering algorithm to obtain film recommendations from people who share similar tastes in film...
  
  

• Factiva
  Factiva
  Factiva is a business information and research tool owned by Dow Jones & Company. Factiva aggregates content from both licensed and free sources, and provides organizations with search, alerting, dissemination, and other information management capabilities...
  
  
• Facts on File
• Fashion Model Directory
  Fashion Model Directory
  The Fashion Model Directory is an online database of information about female fashion models, modeling agencies, fashion labels, fashion magazines, fashion designers and fashion editorials. FMD is often denoted as the IMDb of the fashion industry, for being one of the world's largest fashion...
  
  
• Filmarchives online
  Filmarchives online
  filmarchives online is a web gateway providing easy access to moving image collections from various European film archives. It allows the search throughout a growing number of individual archival databases...
  
  
• Find A Grave
  Find A Grave
  Find a Grave is a commercial website providing free access and input to an online database of cemetery records. It was founded in 1998 as a DBA and incorporated in 2000.-History:...
  
  
• FishBase
  FishBase
  FishBase is a comprehensive database of information about fish species . It is the largest and most extensively accessed online database on adult finfish on the web...
  
  
• Flags of the World
  Flags of the World
  Flags of the World is an Internet-based vexillological association and resource. Its principal project is the Internet's largest website devoted to vexillology, containing comprehensive information about all kinds of flags, and an associated mailing list...
  
  
• Flora Europaea
  Flora Europaea
  The Flora Europaea is a 5-volume encyclopedia of plants, published between 1964 and 1993 by Cambridge University Press. The aim was to describe all the national Floras of Europe in a single, authoritative publication that helped readers identify any wild or widely cultivated plant in Europe to the...
  
  

G - I

• Gallica
• Game Rankings
  Game Rankings
  GameRankings is a website that collects review scores from both offline and online sources to give an average rating. It indexes over 315,000 articles relating to more than 14,500 games.GameRankings is owned by CBS Interactive...
  
  
• GD3 Data
• Genenetwork
  Genenetwork
  GeneNetwork is a database and open source bioinformatics software resource for systems genetics. This resource is used to study gene regulatory networks that link DNA sequence variants to corresponding differences in gene and protein expression and to differences in traits such as health and...
  
  
• GEO-LEO
  GEO-LEO
  GEO-LEO is a virtual library for the specialty fields of mining, geography, maps and astronomy. This is a free Internet portal to search for, find and obtain books, periodicals, articles, websites and maps in the context of geosciences. Free or licensed full texts, e.g. from e-journals, are...
  
   (GEO Library Experts Online)
• Gesamtkatalog der Wiegendrucke
  Gesamtkatalog der Wiegendrucke
  The Gesamtkatalog der Wiegendrucke is an ongoing project of the Staatsbibliothek zu Berlin to publish a union catalogue of incunabula. The Gesamtkatalog der Wiegendrucke is available in part in print and in its entirety—in draft form—via an online database...
  
  
• GetCITED
  GetCITED
  GetCITED is a website database that lists publication and citation information on academic articles whose information is entered by members. It aims to include not only journal articles but also book chapters and other publications, both peer-reviewed and non-reviewed...
  
  
• Getty Thesaurus of Geographic Names
  Getty Thesaurus of Geographic Names
  The Getty Thesaurus of Geographic Names is a product of the J. Paul Getty Trust included in the Getty Vocabulary Program. The TGN includes names and associated information about places. Places in TGN include administrative political entities and physical features . Current and historical places...
  
  
• Google Base
  Google Base
  Google Base was an online database provided by Google into which any user can add almost any type of content, such as text, images, and structured information in formats such as XML, PDF, Excel, RTF, or WordPerfect. As of September 2010, the product has since been promoted to Google Merchant Center...
  
  
• Grand Comics Database

• Higher intellect project
  Higher intellect project
  The Higher Intellect project, also known as preterhuman.net, is a large freely accessible collections of text files and books. The archive consists of over 280,000 text files in a 110GB database. The project is entirely non-profit and is funded only by donations from its users and...
  
  
• Hoover's
  Hoover's
  Hoover's, Inc., a subsidiary of Dun & Bradstreet, is a business research company that has provided information on U.S. and foreign companies and industries since 1990. Since 1993, the company has made its information available on its website.-Operations:...
  
  
• HotPads.com
  HotPads.com
  HotPads.com is an map-based rental housing and real estate search engine. Launched in November 2005, the site allows users to search for housing using a graphical map. Listings are displayed at their addresses, allowing users to conduct a location-based search. Through the graphical interface,...
  
  

• I.N.D.U.C.K.S.
  I.N.D.U.C.K.S.
  The International Network of Disney Universe Comic Knowers and Sources or Inducks is a freely available database aiming to index all Disney Universe comics ever printed in the world. It is an international project which provides indexes of around 90,000 Disney comic publications worldwide. It is...
  
  
• IBISWorld
  IBISWorld
  - History :IBISWorld was formed in 1971 as IBIS Research Services. IBISWorld is a market research organization specializing in long range forecasting of industries and the business environment at large, with an emphasis on providing information for strategic planning and research purposes.Phil...
  
  
• Incunabula Short Title Catalogue
  Incunabula Short Title Catalogue
  The Incunabula Short Title Catalogue is an electronic bibliographic database maintained by the British Library which seeks to catalogue all known incunabula. The database lists books by individual editions, recording standard bibliographic details for each edition as well as giving a brief census...
  
  
• IndexMaster
  IndexMaster
  IndexMaster is a legal research database that allows users find and preview legal publications. The search results allow the researcher to view the tables of contents and indexes online. IndexMaster received the Best New Product of the Year in 2000 from the American Association of Law Libraries....
  
  
• Indian Railways Fan Club
  Indian Railways Fan Club
  The Indian Railways Fan Club is the internet's largest website devoted to the Indian Railways. The IRFCA is an electronic mailing list or discussion group connecting many fans particularly interested in railways in India...
  
  
• Inorganic Crystal Structure Database (ICSD)
  Inorganic Crystal Structure Database (ICSD)
  ICSD is a database of inorganic crystal structure data. It was founded in 1978 by Günter Bergerhoff and I.D.Brown . It is now produced by the Fachinformationszentrum Karlsruhe in Europe and the U.S. National Institute of Standards and Technology...
  
  
• InTechOpen
• Interment (website)
  Interment (website)
  Interment.net is a website containing a free on-line database of transcriptions from grave markers, intended to be a research tool for use by genealogists and historians...
  
  
• International Directory of Philosophy
  International Directory of Philosophy
  The International Directory of Philosophy is a reference database containing information on university philosophy departments, research centers, professional societies, journals, and philosophy publishers in countries over 130 countries...
  
  
• Internet Archive
  Internet Archive
  The Internet Archive is a non-profit digital library with the stated mission of "universal access to all knowledge". It offers permanent storage and access to collections of digitized materials, including websites, music, moving images, and nearly 3 million public domain books. The Internet Archive...
  
  
• The Internet Book Database
• The Internet Book Database of Fiction
• Internet Book List
• Internet Broadway Database
  Internet Broadway Database
  The Internet Broadway Database is an online database of Broadway theatre productions and their personnel. It is operated by the Research Department of The Broadway League, a trade association for the North American commercial theatre community....
  
  
• Internet Movie Database
  Internet Movie Database
  Internet Movie Database is an online database of information related to movies, television shows, actors, production crew personnel, video games and fictional characters featured in visual entertainment media. It is one of the most popular online entertainment destinations, with over 100 million...
  
  
• Internet Off-Broadway Database
• Internet Public Library
  Internet Public Library
  The Internet Public Library is a non-profit, largely student-run website at Drexel University. Visitors can ask a reference question. Volunteer librarians and graduate students in library and information science form collections and answer questions. The IPL opened on March 17, 1995.- History...
  
  
• Internet Speculative Fiction Database
  Internet Speculative Fiction Database
  The Internet Speculative Fiction Database is a database of bibliographic information on science fiction and related genres such as fantasy fiction and horror fiction. The ISFDB is a volunteer effort, with both the database and wiki being open for editing and user contributions...
  
  
• Internet Theatre Database
  Internet Theatre Database
  The Internet Theatre Database is an online database with information about plays, playwrights, actors, legitimate theater, musical theater, Broadway shows, and similar theatrical information....
  
  
• ISBNdb.com

J - N

• JEFIND
• JibJab
  JibJab
  JibJab is a digital entertainment studio based in Venice, California. Founded in 1999 by Evan and Gregg Spiridellis, it was noticed during the 2004 US presidential election when their video of George W. Bush and John Kerry singing "This Land is Your Land" became a hit. The company creates,...
  
  

• Kdo byl kdo
  Kdo byl kdo
  Kdo byl kdo is the name of two major encyclopedic works in Czech, published as books, CD-ROMs and also available online. Their publisher is Libri:* Kdo byl kdo v našich dějinách ve 20...
  
  
• Killer List of Videogames
  Killer List of Videogames
  The Killer List of Videogames is a web site featuring an online encyclopedia devoted to cataloging arcade games past and present. It is the video game department of the International Arcade Museum, and has been referred to as "the IMDb for players."....
  
  

• LexisNexis
  LexisNexis
  LexisNexis Group is a company providing computer-assisted legal research services. In 2006 it had the world's largest electronic database for legal and public-records related information...
  
  
• The Literary Encyclopedia
  The Literary Encyclopedia
  The Literary Encyclopedia is an online reference work first published in October 2000 which, as of May 2008, offers freely available content together with full content and services for subscribing members. Articles are written by "nearly 2000 named scholars, most of whom are current university...
  
  
• LongJump - Cloud Database Builder

• Making the History of 1989
  Making the History of 1989
  Making the History of 1989 is an online database for teachers and students. The educational site provides teaching materials including scholar interviews, teaching modules, case studies and primary sources related to the fall of Communism in Eastern Europe. The digital history project was created...
  
  
• ManyDesigns Portofino
  ManyDesigns Portofino
  ManyDesigns Portofino is an open-source web application framework written in Java, supporting several commercial and open source databases, and based on the Struts2 MVC framework...
  
  
• Maven Semantic Healthcare Database
  Maven Semantic Healthcare Database
  Maven Semantic Healthcare is a database that holds over 6 million medical professionals, and 500,000 medical organisations.The Maven Semantic medical database covers pharmaceutical, biotech and medical device companies, clinical research labs, hospitals, medical universities and government research...
  
  
• MedlinePlus
  MedlinePlus
  MedlinePlus is a free Web site that provides consumer health information for patients, families, and Health care providers. The site brings together information from the United States National Library of Medicine, the National Institutes of Health , other U.S. government agencies, and...
  
  
• Metacritic
  Metacritic
  Metacritic.com is a website that collates reviews of music albums, games, movies, TV shows and DVDs. For each product, a numerical score from each review is obtained and the total is averaged. An excerpt of each review is provided along with a hyperlink to the source. Three colour codes of Green,...
  
  
• Metropolitan Travel Survey Archive
  Metropolitan Travel Survey Archive
  The U.S. Metropolitan Travel Survey Archive is a project to store, preserve, and make publicly available, via the internet, travel surveys conducted by metropolitan areas, states and localities....
  
  
• MIMIC II (Multiparameter Intelligent Monitoring in Intensive Care)
• Mindat.org
  Mindat.org
  Mindat.org is a non-commercial online mineralogical database, claiming to be the largest mineral database and mineralogical reference website on the internet....
  
  
• MobyGames
  MobyGames
  -Platforms not yet included:- Further reading :* Rusel DeMaria, Johnny L. Wilson, High Score!: The Illustrated History of Electronic Games, McGraw-Hill/Osborne Media; 2 edition , ISBN 0-07-223172-6...
  
  
• Movie Review Query Engine
  Movie Review Query Engine
  The Movie Review Query Engine also known as MRQE, is an index of movie reviews published online. Registered users are able to access movie-specific forums and provide their own reviews. The site aggregates reviews, news, interviews, and other material associated to specific movies...
  
  
• Movie Tome
  Movie Tome
  Movie Tome was the sister site for TV Tome, now the CNET website TV.com. Whereas TV Tome had TV shows and people pages, Movie Tome had movie guides. The website was created no later than August 2003 by John Nestoriak III, and was owned by Collaborative Content, LLC which was acquired by CNET in...
  
  
• Msdsonline
  Msdsonline
  MSDSonline is a provider of on-demand safety management products and services designed for businesses to access, manage and deploy a compliant material safety data sheet library and manage their various safety compliance programs from an Internet connected computer.-Overview:Founded in 1996,...
  
  
• My Database Online
• Mydatabase.biz
• MyTaskHelper.com

• Names Database
  Names Database
  The Names Database is a social network, owned and operated by United Online, the parent company of Classmates.com, with headquarters in Orem, Utah. Unlike most social networks, it requires that new registrations include five email addresses of friends or acquaintances...
  
  
• National Environmental Directory
  National Environmental Directory
  The National Environmental Directory is the biggest directory of environmental NGOs in the U.S., currently listing over 13,000 organizations....
  
  
• NEO CANDO
  NEO CANDO
  Northeast Ohio Community and Neighborhood Data for Organizing is an online database built and managed by the , under the direction of Co-director at the Mandel School of Applied Social Sciences in Cleveland, Ohio...
  
  
• Newsknowledge
  Newsknowledge
  NewsKnowledge is a commercial news aggregator providing full text news articles and headline news feeds for web sites and digital signage. NewsKnowledge was founded in 1996 and is based in Zürich, primarily providing commercial products for web syndication It is the owner of NewsIsFree.com, a free...
  
  
• Nichigai WHO
  Nichigai WHO
  Nichigai WHO, organized by Nichigai Associates, is a searchable database of over 300,000 historical and contemporary figures. The database was created to facilitate research related to publishers, mass communications, research institutes, libraries, and freelancers.- Nichigai Associates :Nichigai...
  
  
• NNDB
  NNDB
  The Notable Names Database , produced by Soylent Communications, the same entity that produces Rotten, Daily Rotten, Dr. Sputnik's Society Pages and Penny Postcards, is an online database of biographical details of over 36,000 people of note...
  
  
• NoorderSoft Waterways Database

O - S

• On-Line Encyclopedia of Integer Sequences
  On-Line Encyclopedia of Integer Sequences
  The On-Line Encyclopedia of Integer Sequences , also cited simply as Sloane's, is an online database of integer sequences, created and maintained by N. J. A. Sloane, a researcher at AT&T Labs...
  
  
• Opposing Viewpoints
• OSVDB
  OSVDB
  Open Source Vulnerability Database is an independent and open source database created by and for the community. The goal of the project is to provide accurate, detailed, current, and unbiased technical information on security vulnerabilities...
  
  

• Paradisec
  Paradisec
  The Pacific and Regional Archive for Digital Sources in Endangered Cultures is a cross-institutional project that supports work on endangered languages and cultures of the Pacific and the region around Australia. They digitise reel-to-reel field tapes, have a mass data store and use international...
  
   (Pacific and Regional Archive for Digital Sources in Endangered Cultures)
• PHI-base
  PHI-base
  The Pathogen - Host Interaction database contains expertly curated molecular and biological information on genes proven to affect the outcome of pathogen-host interactions...
  
  
• Philosophy Research Index
  Philosophy Research Index
  The Philosophy Research Index is an and abstracting and indexing database containing bibliographic information on philosophical publications in western languages. It contains over 800,000 citations to a range of philosophical publications, including books, anthologies, scholarly journals,...
  
  
• Plant DNA C-values Database
  Plant DNA C-values Database
  The Plant DNA C-values Database is a comprehensive catalogue of C-value data for land plants and algae. The database was created by Prof. Michael D. Bennett and Dr. Ilia J. Leitch of the Royal Botanic Gardens, Kew, UK...
  
  
• Plants for a Future
  Plants for a Future
  Plants For A Future is an online not for profit resource for those interested in edible and useful plants of temperate regions. The project currently has a site in the South West of England where many of the plants are being grown on a trial basis, and maintains a small mail order catalogue...
  
  
• Pouët
• Price guide
• Progarchives
• ProQuest
  ProQuest
  ProQuest LLC is an Ann Arbor, Michigan-based electronic publisher and microfilm publisher.It provides archives of sources such as newspapers, periodicals, dissertations, and aggregated databases of many types. Its content is estimated at 125 billion digital pages...
  
  
• Proteomics Identifications Database
  Proteomics Identifications Database
  The PRIDE is one of the most prominent public data repositories of mass spectrometry based proteomics data, and is maintained by the European Bioinformatics Institute as part of the Proteomics Services Team....
  
   (PRIDE)
• Psephos
  Psephos
  thumb|350px|A map of Congressional districts in South Florida, from Psephos: Adam Carr's Electoral ArchivePsephos: Adam Carr's Electoral Archive is an online archive of election statistics, and claims to be the world's largest online resource of such information...
  
  
• PsycINFO
  PsycINFO
  PsycINFO is a database of abstracts of literature in the field of psychology. It is produced by the American Psychological Association and distributed on the association's and through third-party vendors. It is the electronic version of the now-ceased Psychological Abstracts...
  
  
• PubChem
  PubChem
  PubChem is a database of chemical molecules and their activities against biological assays. The system is maintained by the National Center for Biotechnology Information , a component of the National Library of Medicine, which is part of the United States National Institutes of Health . PubChem can...
  
  
• Public Radio Fan
  Public Radio Fan
  Public Radio Fan is a web portal resource for the location of all public radio resources around the world. The website enables users to locate public radio resources by name, location, format, language and other means. They have indexes of shows and program schedules. The site was started in...
  
  
• PubMed Central
  PubMed Central
  PubMed Central is a free digital database of full-text scientific literature in biomedical and life sciences. It grew from the online Entrez PubMed biomedical literature search system. PubMed Central was developed by the U.S. National Library of Medicine as an online archive of biomedical journal...
  
  

• Quickbase

• RedLightGreen
  RedLightGreen
  RedLightGreen was a database of bibliographic descriptions on the Web created by Research Libraries Group . RedLightGreen also allowed users to create citations for works found...
  
  

• Scots Law Times
  Scots Law Times
  The Scots Law Times is the law reports service in Scotland, publishing over 1400 pages of reports each year. Published weekly during court term, the Scots Law Times covers every Scottish court, civil and criminal, from the Sheriff Courts to the House of Lords.Since 2000, the Scots Law Times...
  
  
• SeatGuru
  Seatguru
  SeatGuru.com is a website that features aircraft seat maps, seat reviews, and a color-coded system to identify superior and substandard airline seats...
  
  
• Sherdog
  Sherdog
  Sherdog is an American website devoted to the sport of mixed martial arts . The site is a member of the Crave Online network and provides MMA related content for ESPN.com.- History :...
  
  
• Sing365.com
  Sing365.com
  Sing365.com is a not-for-profit online lyrics database. According to Alexa.com, it is one of the 1000 most visited websites worldwide....
  
  
• SmealSearch
  SmealSearch
  SmealSearch was a web portal, search engine and digital library for academic business documents that was originally hosted at the defunct eBusiness Research Center at the Pennsylvania State University. It was based on the CiteSeer digital library and search engine technology...
  
  
• SocialCompare - Online Database of items that can be compared
• StratusBase - Cloud Database Builder
• StratusBase (Google Chrome App)
• Svenskt Diplomatarium
  Svenskt Diplomatarium
  Svenskt Diplomatarium is a series of critical editions of medieval Swedish documents or documents pertaining to the history of Sweden ....
  
  

T - Z

• TCM Movie Database
• Teacher Training Resource Bank
  Teacher Training Resource Bank
  The Teacher Training Resource Bank website aims to support the Initial Teacher Training community in its use of evidence to inform practice. It provides access to thousands of resources, such as research reports, video materials and practical - evidence informed - materials...
  
  
• Textfiles.com
  Textfiles.com
  textfiles.com is a web site run by Jason Scott dedicated to preserving the digital documents that contain the history of the BBS world and various subcultures. The site categorises and stores thousands of ASCII files. It focuses on text files from the 1980s, but also contains some older files and...
  
  
• Tocsearch
  Tocsearch
  The TOC search is a dynamic data base which offers comprehensive information on global terrorist network and help researchers, analysts, students and others working to prevent terrorism...
  
  
• TOSEC
  TOSEC
  The Old School Emulation Center is a retrocomputing initiative dedicated to the cataloging and preservation of software, firmware and resources for microcomputers, minicomputers and video game consoles...
  
  
• The Simpsons Archive
  The Simpsons Archive
  The Simpsons Archive, better known as snpp.com or simply SNPP , is a Simpsons fan site that has been online since 1994...
  
  
• Transterm
  Transterm
  Transterm is a database of mRNA sequences, codon usage, and associated cis-regulatory elements that regulate gene expression. Many of these elements are in the 3' UTR.- References :...
  
  
• TV.com
  TV.com
  TV.com is a website owned by CBS Interactive. The site covers television and focuses on English-language shows made or broadcast in the United States, the United Kingdom, Canada, Australia, New Zealand, Ireland and Japan...
  
  

• Uchronia: The Alternate History List
  Uchronia: The Alternate History List
  Uchronia: The Alternate History List is an online general-interest book database containing a bibliography of over 2900 alternate history novels, stories, essays and other printed material. It is owned and operated by Robert B. Schmunk...
  
  
• Ultimate Guitar Archive
  Ultimate Guitar Archive
  Ultimate Guitar Archive, also known as Ultimate-Guitar.com or simply UG, is a large guitarist community website known for its large amount of guitar and bass tablature, reviews of music and equipment, interviews with notable musicians, online written and video lessons, and forums...
  
  

• Virtuoso Universal Server
  Virtuoso Universal Server
  Virtuoso Universal Server is a middleware and database engine hybrid that combines the functionality of a traditional RDBMS, ORDBMS, virtual database, RDF, XML, free-text, web application server and file server functionality in a single system...
  
  

• Web of Science
  Web of Science
  ISI Web of Knowledge is an academic citation indexing and search service, which is combined with web linking and provided by Thomson Reuters. Web of Knowledge coverage encompasses the sciences, social sciences, arts and humanities. It provides bibliographic content and the tools to access, analyze,...
  
  
• Who's Who (UK)
  Who's Who (UK)
  Who's Who is an annual British publication of biographies which vary in length of about 30,000 living notable Britons.-History:...
  
  
• WinCustomize
  WinCustomize
  WinCustomize is a website that provides content for users to customize Microsoft Windows. The site hosts thousands of skins, themes, icons, wallpapers, and other graphical content to modify the Windows graphical user interface...
  
  
• Wind ENergy Data & Information (WENDI) Gateway
  Wind ENergy Data & Information (WENDI) Gateway
  The Wind ENergy Data & Information Gateway was launched by the Environmental Sciences Division of Oak Ridge National Laboratory in March 2010 to support the United States Department of Energy's Wind & Hydropower Technologies Program...
  
  
• World Biographical Information System Online
  World Biographical Information System Online
  The World Biographical Information System Online is an online subscription database, referencing many different biographical secondary sources....
  
  
• WorldCat
  WorldCat
  WorldCat is a union catalog which itemizes the collections of 72,000 libraries in 170 countries and territories which participate in the Online Computer Library Center global cooperative...
  
  
• WorldWide Molecular Matrix
  Worldwide molecular matrix
  The World Wide Molecular Matrix is an electronic repository for unpublished chemical data. First proposed in 2002 by Peter Murray-Rust and his colleagues in the chemistry department at the University of Cambridge in the United Kingdom, WWMM provides a free, easily searchable database for...
  
  

• Yummly
  Yummly
  Yummly is a semantic web search engine for food, cooking and recipes. It ‘understands’ food on a variety of levels, allows users to search by ingredient, diet, allergy, nutrition, price, cuisine, time, taste, meal courses and sources, and ‘learns’ about users based on their likes and dislikes....
  
  

• Zabasearch.com
  Zabasearch.com
  Zabasearch.com is a website that searches for and collates disparate information regarding United States residents, including names, current and past addresses, phone numbers, and birth years, and then permits the user to query other search engines with this information to retrieve other data such...
  
  
• Zillow.com
  Zillow.com
  Zillow is an online real estate database that was founded in 2005 by Rich Barton and Lloyd Frink, former Microsoft executives and founders of Microsoft spin-off Expedia. The website uses a proprietary algorithm called the "Zestimate" to appraise property values based on undisclosed factors...
  
  
• ZINC database
  ZINC database
  The ZINC database is a curated collection of commercially available chemical compounds prepared especially for virtual screening. ZINC is used by investigators in pharmaceutical companies,...
  
  
• Zoho Creator

See also

• List of academic databases and search engines
• List of biodiversity databases
• List of neuroscience databases