Comparison of Q&A sites

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The following is a list of websites that follow a question-and-answer format.[clarification needed] The list contains only websites for which an article exists, dedicated either wholly or at least partly to the websites.

Website Founded Closed Description/focus Languages available Copyrighting of user contributions Registration required?
Answers.com 2005 2018 All topics English Yes
Ask.fm 2010 - Social topics 49 languages Yes
Ask Me Help Desk 2003 - Many topics English and a few others Yes
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
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
Chegg 2005 - Academic English Owned by Chegg Inc.[3] Yes / paid
eNotes 2005 - Academic English Owned by eNotes.com[4] Yes / paid
Experts-Exchange 1996 - Information Technology Yes / paid
Fixya 2005 - Consumer products English Yes
GirlsAskGuys 2007 - Social topics English Yes
Gutefrage.net 2006 - German Yes
HealthTap 2011 - Health information English No
Internet Oracle 1989 - All topics (humorous) English No
Jobstr 2011 - Business English
Knowledge Search 2002 - Many topics Korean
MadSci Network 1995 - Science English
ProfNet 1992 - Journalists English Yes
Quora 2009 - Many topics 9 languages Contributions owned by the author. Quora granted "worldwide, non-exclusive, royalty-free license" to content use, distribution, or modification.[5] Yes, except to view single answers
r/AskHistorians 2012 - History English No to browse, yes to contribute
Sharecare 2009 - Health and wellness English No
Stack Exchange 2008 - Many topics English Contributions owned by the author. Contributions "perpetually and irrevocably licensed to Stack Exchange under the Creative Commons Attribution Share Alike license".[6] No to browse, yes to contribute
Stack Overflow 2008 - Information Technology English No to browse, yes to contribute
The Straight Dope 1973 (print) - Many topics English No
Transtutors 2007 - Academic English Owned and operated by Transweb Educational Services[7] Yes / paid
English Wikipedia Reference Desk 2004 - Many topics English CC-BY-SA 3.0 and GFDL dual license No
Yahoo! Answers 2005 - All topics 13 languages Contributions owned by the author. Yahoo retains rights to the use, distribution or modification.[8] No
Zhihu 2011 - Many topics Chinese and a few others Owned and operated by the original authors. No
Askbot 2009 N/A varies varies varies
BlikBook 2010 N/A Local academic English Yes
WikiAnswers 2002 2018 Many topics Subsumed by Answers.com (one of several concurrent URLs)
3form 1998 2016 Many topics English na na
ChaCha 2006 2016 Many topics English Owned by ChaCha.[9] na
Experience Project 2007 2016 Social topics English Terms of use for Experience Project[10] anonymous
Google Questions and Answers 2007 2014 Many topics Russian, Chinese, English, French na
Jelly 2013 2017 All topics English
LinkedIn Answers 2007 2013 Business Yes
Mahalo.com 2007 2014 Many topics English na
Spring.me (formerly Formspring) 2009 2015 All topics English Yes
TXN (The Experts Network) 2011 ? Sports English No
Uclue 2007 ? Many topics English Yes

See also[edit]

References[edit]

  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. ^ "Terms of use of Chegg.com". Chegg. Retrieved 3 January 2016. 
  4. ^ "Terms of use of eNotes.com". eNotes. Retrieved 3 January 2016. 
  5. ^ "Terms of use of the Quora service". Quora. Retrieved 3 January 2016. 
  6. ^ "Terms of Service - Stack Exchange". Stack Exchange. Retrieved 3 January 2016. 
  7. ^ "Terms & Conditions of Transtutors.com". Transtutors. Retrieved 9 January 2014. 
  8. ^ "Terms of use of the Yahoo Answer service". Yahoo. Retrieved 3 January 2016. 
  9. ^ "Terms of use of the ChaCha service". ChaCha.com. Retrieved 3 January 2016. 
  10. ^ "Statement of Rights and Responsibilities". Experience Project. Retrieved 5 August 2015.