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DissolvedOctober 2013 (2013-10)
OwnerRusty Foster
Users~10,000 (2005)
LaunchedDecember 1999; 24 years ago (1999-12)
Current statusOffline (May 1, 2016 (2016-05-01))

Kuro5hin (K5; read "corrosion")[1] was a collaborative discussion website founded by Rusty Foster in 1999, having been inspired by Slashdot.[2] Articles were created and submitted by users and submitted to a queue for evaluation. Site members could vote for or against publishing an article and once the article had reached a certain number of votes, it was published to the site or deleted from the queue.[3] The site has been described as "a free-for-all of news and opinion written by readers".[4] Around 2005, its membership numbered in the tens of thousands.[3]

On May 1, 2016, the site was closed down permanently with all content taken offline.[5] Foster stated at the time that it might return in the form of a static archive at a later date.[6]


All content was generated and selected by the users themselves, with the exception of site news written by the administrators. Registered users would submit stories to the submissions queue where other users would vote +1 FP (front page), +1, 0, or −1. If the story reached a predetermined threshold score, it was posted to the front page or to the relevant section, depending on the proportion of "FP votes". If it failed to make the threshold, other factors (such as number of comments, type of comments, and their ratings) could still cause the story to be posted to a section or to the front page. Otherwise, it was dropped.[7][8][9]

One feature of the story queue was edit mode, in which a story was protected from voting for a period of time during which the author could make changes. Comments could still be made on the story to suggest changes before voting began. These comments were distinguished as being editorial or topical.[citation needed]

A further section was known as the diaries. Having no editing or moderation vetting, diaries were essentially weblogs.[10] and formed the source of most of Kuro5hin's content by volume. However, unlike the edited article sections, they were not widely syndicated. Other users would also comment on these diaries in the same way as stories but with without the editorial or topical stipulation.[citation needed]


Foster named Kuro5hin—pronounced corrosion—as a pun on his first name.[1] The site was powered by the Scoop collaborative system, originally written by Foster himself,[11] with the motto "Technology and Culture, from the Trenches".

In July 2000, the site was temporarily closed due to comment spam and denial of service attacks.[12]

In January 2002, OSDN ended the advertising affiliate agreement with Kuro5hin.[13]

See also[edit]


  1. ^ a b Boutin, Paul (June 21, 2002). "It Takes a Village to Save a Site". WIRED. Retrieved August 13, 2016.
  2. ^ name=":0" Retrieved July 18, 2016
  3. ^ a b Murphy, David (September 20, 2005). "Google's ad network spreads the wealth: here's how Google's AdSense program can make money for your Web site. (INTERNET BUSINESS)". PC Magazine. Vol. 24, no. 16. p. 74. Archived from the original on August 5, 2019. Retrieved August 5, 2019.
  4. ^ Brandt, Andrew (August 2001). "Kuro5hin. (Internet/Web/Online Service Information) (Brief Article)". PC World. Vol. 19, no. 8. p. 96.
  5. ^ "RIP Kuro5hin". Slashdot.org. Archived from the original on May 2, 2016. Retrieved May 1, 2016.
  6. ^ "Hey so this is Rusty". Hacker News. Archived from the original on June 5, 2016. Retrieved May 2, 2016.
  7. ^ Orlowski, Andrew (July 27, 2000). "Script kiddies fell Kuro5hin". The Register. Archived from the original on October 3, 2012. Retrieved August 30, 2012.
  8. ^ "Five rules for building a successful online community". OJR: The Online Journalism Review. Archived from the original on August 26, 2012. Retrieved August 30, 2012.
  9. ^ Song, Ronggong; Yee, George; Korba, Larry (2007). Trust in E-Services: Technologies, Practices, and Challenges. Idea Group Publishing. p. 65. ISBN 9781599042077.
  10. ^ "Interview with Rusty Foster of Kuro5hin.org". Dotcom Scoop. January 28, 2002. Archived from the original on December 4, 2003.
  11. ^ "Script kiddies fell Kuro5hin". The Register. Archived from the original on August 10, 2017. Retrieved August 10, 2017.
  12. ^ "Kuro5hin closes its doors — for good?". geek.com. July 27, 2000. Archived from the original on October 20, 2013. Retrieved October 19, 2013. [...] spam (unwanted content) and DoS (Denial of Service) attacks, flooding the server with commands and fake information. The attacks led the volunteer staff to finally call it a day.
  13. ^ Orlowski, Andrew (October 31, 2001). "VA drops Linux name, boots out Kuro5hin". The Register. Archived from the original on October 3, 2012. Retrieved August 30, 2012.

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