Comparison of Q&A sites

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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.

WebsiteFoundedClosedDescription/focusLanguages availableCopyrighting of user contributionsRegistration required?Price
Answers.com 2005All topicsEnglishFree
Ask.fm 2010Social topics49 languagesYes
Askbot 2009N/Avariesvariesvaries
Ask MetaFilter 2003Many topicsEnglishAll posts are copyright to their original authors. [1] No to browse, yes to contribute
Avvo 2006LegalEnglishYes
Baidu Knows 2005Many topicsChineseNo to browse, yes to contribute
BlikBook 2010N/ALocal academicEnglishYes
Blurtit 2006All topicsEnglishYes
Brainly 2009Academic12 languagesContributed content owned by its author(s)No to browse, yes to contribute
Brilliant.org 2013Science, technology, mathEnglishUser retains ownership; Brilliant can use, distribute, modify. [2] Yes/Paid [3] $599.99 for life time use
ChaCha 20062016Many topicsEnglishOwned by ChaCha [4] N/A
Chegg 2005AcademicEnglishOwned by Chegg Inc. [5] Yes / paid
eNotes 2005AcademicEnglishOwned by eNotes.com [6] Yes / paid$14.99/month; $49.99/year [7]
Experts-Exchange 1996Information technologyYes / paid
Fixya 2005Consumer productsEnglishYes
Google Answers 20022006EnglishYes
Google Questions and Answers 20072014Many topicsRussian, Chinese, English, FrenchN/A
Gutefrage.net 2006GermanYesFree
HealthTap 2011Health informationEnglishNo
Internet Oracle 1989All topics (humorous)EnglishNo
Jelly 20132017All topicsEnglish
Knowledge IN 2002Many topicsKorean
LinkedIn Answers 20072013BusinessYes
MadSci Network 1995ScienceEnglish
Mahalo.com 20072014Many topicsEnglishN/A
Ответы@Mail.Ru 2006Russian
ProfNet 1992JournalistsEnglishYes
Quora 2009Many topics22 languagesContributions owned by the author. Quora granted "worldwide, non-exclusive, royalty-free license" to content use, distribution, or modification. [8] Yes, except to view single answersFree
Reddit 2005All topicsDepends on subredditNo to browse, yes to contribute
Sharecare 2009Health and wellnessEnglishNo
Spring.me (formerly Formspring)20092015All topicsEnglishYes
Stack Exchange 2008Many topicsEnglish (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". [9] No to browse and answer, yes to ask and contribute fully. Some topics allow asking as a guest.
Stips 2006All topicsHebrewYes
The Straight Dope 1973 (print)2018Many topicsEnglishNo
Transtutors 2007AcademicEnglishOwned and operated by Transweb Educational Services [10] Yes / paid
TXN (The Experts Network)2011 ?SportsEnglishNo
Uclue 20072017Many topicsEnglishYes
WikiAnswers 20022018Many topicsSubsumed by Answers.com (one of several concurrent URLs)
English Wikipedia Reference Desk 2004Many topicsEnglishCC-BY-SA 3.0 and GFDL dual licenseNo
Yahoo! Answers 20052021All topics13 languagesContributions owned by the author. Yahoo retains rights to the use, distribution or modification. [11] No
Zhihu 2011Many topicsChinese and a few othersOwned and operated by the original authors.Yes, except to view answers of questions when directed from search engine

See also

References

  1. Haughey, Matt. "FAQ: Who owns the copyright on MetaFilter content?". MetaFilter. Retrieved 20 May 2014.
  2. "Terms of use of Brilliant.org". Brilliant.org. Retrieved 8 October 2014.
  3. "Brilliant Premium | Brilliant".
  4. "Terms of use of the ChaCha service". ChaCha.com. Archived from the original on 14 November 2015. Retrieved 3 January 2016.
  5. "Terms of use of Chegg.com". Chegg. Retrieved 3 January 2016.
  6. "Terms of use of eNotes.com". eNotes. Retrieved 3 January 2016.
  7. https://www.enotes.com/jax/index.php/checkout/trial 31 January 2020
  8. "Terms of use of the Quora service". Quora. Retrieved 3 January 2016.
  9. "Terms of Service — Stack Exchange". Stack Exchange. Retrieved 3 January 2016.
  10. "Terms & Conditions of Transtutors.com". Transtutors. Retrieved 9 January 2014.
  11. "Terms of use of the Yahoo Answer service". Yahoo. Retrieved 3 January 2016.