The following is a list of websites that follow a question-and-answer format . The list contains only websites for which an article exists, dedicated either wholly or at least partly to the websites.
For the humor "Q&A site" format first popularized by Forum 2000 and The Conversatron, see Q&A comedy website.
Website | Founded | Closed | Description/focus | Languages available | Copyrighting of user contributions | Registration required? | Price |
---|---|---|---|---|---|---|---|
Answers.com | 2005 | — | All topics | English | Free | ||
Ask.fm | 2010 | — | Social topics | 49 languages | Yes | ||
Askbot | 2009 | N/A | varies | varies | varies | ||
Ask MetaFilter | 2003 | — | Many topics | English | All posts are copyright to their original authors. [1] | No to browse, yes to contribute | |
Avvo | 2006 | — | Legal | English | Yes | ||
Baidu Knows | 2005 | — | Many topics | Chinese | No to browse, yes to contribute | ||
BlikBook | 2010 | N/A | Local academic | English | Yes | ||
Blurtit | 2006 | — | All topics | English | Yes | ||
Brainly | 2009 | — | Academic | 12 languages | Contributed content owned by its author(s) | No to browse, yes to contribute | |
Brilliant.org | 2013 | — | Science, technology, math | English | User retains ownership; Brilliant can use, distribute, modify. [2] | Yes/Paid [3] | $599.99 for life time use |
ChaCha | 2006 | 2016 | Many topics | English | Owned by ChaCha [4] | N/A | |
Chegg | 2005 | — | Academic | English | Owned by Chegg Inc. [5] | Yes / paid | |
eNotes | 2005 | — | Academic | English | Owned by eNotes.com [6] | Yes / paid | $14.99/month; $49.99/year [7] |
Experience Project | 2007 | 2016 | Social topics | English | Terms of use for Experience Project [8] | anonymous | |
Experts-Exchange | 1996 | — | Information technology | Yes / paid | |||
Fixya | 2005 | — | Consumer products | English | Yes | ||
Google Answers | 2002 | 2006 | English | Yes | |||
Google Questions and Answers | 2007 | 2014 | Many topics | Russian, Chinese, English, French | N/A | ||
Gutefrage.net | 2006 | — | German | Yes | Free | ||
HealthTap | 2011 | — | Health information | English | No | ||
Internet Oracle | 1989 | — | All topics (humorous) | English | No | ||
Jelly | 2013 | 2017 | All topics | English | |||
Knowledge IN | 2002 | — | Many topics | Korean | |||
LinkedIn Answers | 2007 | 2013 | Business | Yes | |||
MadSci Network | 1995 | — | Science | English | |||
Mahalo.com | 2007 | 2014 | Many topics | English | N/A | ||
Ответы@Mail.Ru | 2006 | — | Russian | ||||
ProfNet | 1992 | — | Journalists | English | Yes | ||
Quora | 2009 | — | Many topics | 22 languages | Contributions owned by the author. Quora granted "worldwide, non-exclusive, royalty-free license" to content use, distribution, or modification. [9] | Yes, except to view single answers | Free |
2005 | — | All topics | Depends on subreddit | No to browse, yes to contribute | |||
Sharecare | 2009 | — | Health and wellness | English | No | ||
Spring.me (formerly Formspring) | 2009 | 2015 | All topics | English | Yes | ||
Stack Exchange | 2008 | — | Many topics | English (Q&A about other languages takes place in those languages as well as English) | Contributions owned by the author. Contributions "perpetually and irrevocably licensed to Stack Exchange under the Creative Commons Attribution Share Alike license". [10] | No to browse and answer, yes to ask and contribute fully. Some topics allow asking as a guest. | |
Stips | 2006 | — | All topics | Hebrew | Yes | ||
The Straight Dope | 1973 (print) | 2018 | Many topics | English | No | ||
Transtutors | 2007 | — | Academic | English | Owned and operated by Transweb Educational Services [11] | Yes / paid | |
TXN (The Experts Network) | 2011 | ? | Sports | English | No | ||
Uclue | 2007 | 2017 | Many topics | English | Yes | ||
WikiAnswers | 2002 | 2018 | Many topics | Subsumed by Answers.com (one of several concurrent URLs) | |||
English Wikipedia Reference Desk | 2004 | — | Many topics | English | CC-BY-SA 3.0 and GFDL dual license | No | |
Yahoo! Answers | 2005 | 2021 | All topics | 13 languages | Contributions owned by the author. Yahoo retains rights to the use, distribution or modification. [12] | No | |
Zhihu | 2011 | — | Many topics | Chinese and a few others | Owned and operated by the original authors. | Yes, except to view answers of questions when directed from search engine |
Internet security is a branch of computer security. It encompasses the Internet, browser security, web site security, and network security as it applies to other applications or operating systems as a whole. Its objective is to establish rules and measures to use against attacks over the Internet. The Internet is an inherently insecure channel for information exchange, with high risk of intrusion or fraud, such as phishing, online viruses, trojans, ransomware and worms.
This article outlines the general features commonly found in various Internet forum software packages. It highlights major features that the manager of a forum might want and should expect to be commonly available in different forum software. These comparisons do not include remotely hosted services which use their own proprietary software, rather than offering a package for download which webmasters can host by themselves.
The eDonkey Network is a decentralized, mostly server-based, peer-to-peer file sharing network created in 2000 by US developers Jed McCaleb and Sam Yagan that is best suited to share big files among users, and to provide long term availability of files. Like most sharing networks, it is decentralized, as there is no central hub for the network; also, files are not stored on a central server but are exchanged directly between users based on the peer-to-peer principle.
Experts Exchange (EE) is a website for people in information technology (IT) related jobs to ask each other for tech help, primarily through the use of a question-and-answer (Q&A) forum and published technical articles.
Yahoo! Answers was a community-driven question-and-answer (Q&A) website or knowledge market owned by Yahoo! where users would ask questions and answer those submitted by others, and upvote them to increase their visibility. Questions were organised into categories with multiple sub-categories under each to cover every topic users may ask questions on, such as beauty, business, finance, cars, electronics, entertainment, games, gardening, science, news, politics, parenting, pregnancy, and travel. The number of poorly formed questions and inaccurate answers made the site a target of ridicule.
The comparison of mail servers covers mail transfer agents (MTAs), mail delivery agents, and other computer software that provide e-mail services.
A knowledge market is a mechanism for distributing knowledge resources. There are two views on knowledge and how knowledge markets can function. One view uses a legal construct of intellectual property to make knowledge a typical scarce resource, so the traditional commodity market mechanism can be applied directly to distribute it. An alternative model is based on treating knowledge as a public good and hence encouraging free sharing of knowledge. This is often referred to as attention economy. Currently there is no consensus among researchers on relative merits of these two approaches.
Stack Overflow is a question-and-answer website for computer programmers. It is the flagship site of the Stack Exchange Network. It was created in 2008 by Jeff Atwood and Joel Spolsky. It features questions and answers on certain computer programming topics. It was created to be a more open alternative to earlier question and answer websites such as Experts-Exchange. Stack Overflow was sold to Prosus, a Netherlands-based consumer internet conglomerate, on 2 June 2021 for $1.8 billion.
Jeff Atwood is an American software developer, author, blogger, and entrepreneur. He co-founded the question-and-answer network Stack Exchange, which contains the Stack Overflow website for computer programming questions. Atwood is the owner and writer of the computer programming blog Coding Horror, focused on programming and human factors. As of 2012, his most recent project was Discourse, an open source Internet discussion platform.
Chegg, Inc., is an American education technology company based in Santa Clara, California. It provides homework help, digital and physical textbook rentals, textbooks, online tutoring, and other student services.
Quora is a social question-and-answer website and online knowledge market headquartered in Mountain View, California. It was founded on June 25, 2009, and made available to the public on June 21, 2010. Users can collaborate by editing questions and commenting on answers that have been submitted by other users. As of 2020, the website was visited by 300 million users a month.
Stack Exchange is a network of question-and-answer (Q&A) websites on topics in diverse fields, each site covering a specific topic, where questions, answers, and users are subject to a reputation award process. The reputation system allows the sites to be self-moderating. As of March 2023, the three most actively viewed sites in the network are Stack Overflow, Unix & Linux, and Mathematics.
Social information seeking is a field of research that involves studying situations, motivations, and methods for people seeking and sharing information in participatory online social sites, such as Yahoo! Answers, Answerbag, WikiAnswers and Twitter as well as building systems for supporting such activities. Highly related topics involve traditional and virtual reference services, information retrieval, information extraction, and knowledge representation.
Ask Ubuntu is a community-driven question and answer website for the Ubuntu operating system. It is part of the Stack Exchange Network, running the same software as Stack Overflow.
The name MetaTexis is used for several software products developed by MetaTexis Software and Services. The main software products are MetaTexis for Word and the MetaTexis Server. MetaTexis for Word is a translation memory software, also called a Computer-assisted translation tool, that runs inside Microsoft Word. The MetaTexis Server is a server software for translation memories (TMs) and terminology databases (TDBs) that allows numerous translators to work with the same TMs and TDBs via LAN or Internet.
Q&A software is online software that attempts to answer questions asked by users. Q&A software is frequently integrated by large and specialist corporations and tends to be implemented as a community that allows users in similar fields to discuss questions and provide answers to common and specialist questions.
Master Quality Authenticated (MQA) is a proprietary system for delivering high-quality digital audio. The system includes audio signal processing, lossy audio compression and authentication. MQA requires licensing fees to use. The system was launched in 2014 by Meridian Audio, and is now owned by Lenbrook.