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Kuro5hin logo.png
Web address kuro5hin.org
Owner Rusty Foster
Launched December 1999
Alexa rank
IP address[2][3][4][5][6][7]
Current status Active

Kuro5hin (K5) (/kəˈrʒən/[8][9] corrosion[10]) was a collaborative discussion website. Articles are created and submitted by Kuro5hin's users and submitted to a queue for evaluation. Site members can vote for or against publishing an article and, once the article has reached a certain number of votes, it is then published to the site or deleted from the queue.[11] The site has been described as "a free-for-all of news and opinion written by readers".[12]

Kuro5hin is powered by the Scoop collaborative system. Its motto is "Technology and Culture, from the Trenches". It was founded by Rusty Foster in December 1999, being inspired by Slashdot.[10] Kuro5hin's membership used to number in the tens of thousands,[11] but its popularity has declined significantly from its peak in the early 2000s.[13]


All content is generated and selected by the users themselves with the exception of site news, that are written by the site administrators. Registered users can submit stories to the submissions queue. In the queue, users vote +1 FP (front page), +1, 0, or -1. If the story reaches a predetermined threshold score, it is posted to the front page or to the relevant section depending on the proportion of FP votes. If it fails to make the threshold, other factors (such as number of comments, type of comments, and their ratings) can still cause the story to be posted to section or front page. Otherwise, it is dropped.[14][15][16]

One feature of the story queue is edit mode, in which a story is protected from voting for a period of time and the author can make changes. Comments can still be made on the story to suggest changes before voting begins. They are distinguished as being editorial or topical comments. The edit queue is now rarely used.[citation needed]

A further section is known as the diaries. They have no editing or moderation vetting and are essentially weblogs.[17] They are the source of most of Kuro5hin's content by volume, though unlike the edited article sections, they are not widely syndicated. Other users may also comment on these diaries, similar to stories, however without the "Editorial" or "Topical" stipulation.

The diary section is known as "The Ghetto" to the users there. It is often used by trolls to troll each other because they cannot get a story voted up. Some say this is what caused the downfall of Kuro5hin. Rusty once put a three diary a day limit to discourage abuse of the diary section. He has since lifted it recently. Kuro5hin is full of curse words and slang and insults. It is no longer a Slashdot clone, once it added the fiction section and other sections. The main activity is in the diary area.


Rusty Foster named Kuro5hin — which is, as noted, pronounced corrosion — as a pun on his first name.[10]

In January 2002, OSDN ended the advertising affiliate agreement with Kuro5hin.[18]


In July 2000, the site was temporarily closed due to comment spam and denial of service attacks.[19]

The whois record for the kuro5hin.org domain was changed on October 18, 2013[20] and again on October 24.[21]

Financial difficulties[edit]

In June 2002 Foster suggested that he might be forced to sell or shut down Kuro5hin due to lack of funds, and he solicited donations to support the site. Since then, some users have been critical of a perceived lack of active management and functional improvements to the site. As of 2008, the CMF was not legally incorporated, and the site was running on bandwidth provided by its sponsor voxel dot net.[citation needed]


On March 25, 2004, Foster closed off new user accounts because a photoshopped pornographic image of his wife had been posted.[22][non-primary source needed] On July 13, Foster reopened new user accounts and informed the community that he was abandoning the idea of user sponsorship.[23][non-primary source needed] This user sponsorship initiative never came to pass.

See also[edit]


  1. ^ "Kuro5hin.org Site info". Retrieved 2013-12-23. 
  2. ^ "IP Address". Dazzlepod.com. Archived from the original on 2013-10-20. Retrieved 2013-10-20. Hostname web.kuro5hin.org  horizontal tab character in |quote= at position 9 (help)
  3. ^ "IP Address:". Whatismyipaddress.com. Retrieved 2013-10-20. Hostname: web.kuro5hin.org  horizontal tab character in |quote= at position 10 (help)
  4. ^ "Find websites hosted in IP address web.kuro5hin.org - Browsing page 1". Urlvoid.com. Archived from the original on 2013-10-20. Retrieved 2013-10-20. hostname web.kuro5hin.org 
  5. ^ "Kuro5hin.org - Kuro5hin | Site Information". Kuro5hin.org.ipaddress.com. Archived from the original on 2013-09-15. Retrieved 2013-10-20. At the time you pulled this report, the IP of Kuro5hin.org is [...] 
  6. ^ " IP Address WHOIS | DomainTools.com". Whois.domaintools.com. 2003-05-05. Retrieved 2013-10-20. Resolve Host: web.kuro5hin.org 
  7. ^ "kuro5hin.org". Kuro5hin.org.w3snoop.com. Archived from the original on 2013-10-20. Retrieved 2013-10-20. Website IP: 
  8. ^ "corrosion". Merriam-Webster Dictionary. Retrieved 2016-01-21. 
  9. ^ "corrosion". OxfordDictionaries.com. OUP. Retrieved 2016-01-21. 
  10. ^ a b c Boutin, Paul (21 June 2002). "It Takes a Village to Save a Site". Wired. Retrieved 13 June 2007. 
  11. ^ a b Murphy, David (20 September 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 24 (16). p. 74. 
  12. ^ Brandt, Andrew (August 2001). "Kuro5hin. (Internet/Web/Online Service Information) (Brief Article).". PC World 19 (8). p. 96. 
  13. ^ "Statistics". k5.trolltrack.com. Retrieved 2013-07-14. 
  14. ^ Orlowski, Andrew (27 July 2000). "Script kiddies fell Kuro5hin". The Register. Retrieved 30 August 2012. 
  15. ^ "Five rules for building a successful online community". OJR: The Online Journalism Review. 
  16. ^ Song, Ronggong; Yee, George; Korba, Larry (2007). Trust in E-Services: Technologies, Practices, and Challenges. Idea Group Publishing. p. 65. ISBN 9781599042077. 
  17. ^ "Interview with Rusty Foster of Kuro5hin.org". Dotcom Scoop. January 28, 2002. Archived from the original on 2003-12-04. 
  18. ^ Orlowski, Andrew (31 October 2001). "VA drops Linux name, boots out Kuro5hin". The Register. Retrieved 30 August 2012. 
  19. ^ "Kuro5hin closes its doors — for good?". geek.com. 2000-07-27. [...] 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. 
  20. ^ "KurO5Hin.org Whois Record". Domain Tools. Archived from the original on 2013-10-24. Retrieved 2013-10-24. Last Updated On:18-Oct-2013 02:11:09 UTC [...] Status:CLIENT HOLD [...] Registrant State/Province:MD 
  21. ^ "KurO5Hin.org Whois Record". Domain Tools. Archived from the original on 2013-10-25. Retrieved 2013-10-25. Last Updated On:24-Oct-2013 08:03:25 UTC [...] Status:CLIENT TRANSFER PROHIBITED [...] Registrant State/Province:ME 
  22. ^ rusty (25 March 2004). "User Sponsorship and Managed Growth". Kuro5hin. Archived from the original on 2012-10-18. Retrieved 6 October 2006. 
  23. ^ rusty (13 July 2004). "New Users Re-opened". Kuro5hin. Archived from the original on 2012-10-08. Retrieved 6 October 2006. 

External links[edit]