Third Voice
Initial release1999
Operating systemMicrosoft windows
Typeweb annotation

Third Voice was a web annotation browser plug-in launched in 1999 by a company of the same name.[2] The motto associated with the plug-in was:Your Web. Your Voice..[1] The plug-in allowed users to use a sidebar to annotate web sites with note and view notes left by other users.[3] A small red triangle indicated an annotation had been left by another party, these annotations not being held on the website itself but on Third Voice's own servers.[1]


The product encountered various problems in its short lifecycle. Initially when websites were visited there was often little content available from other Third Voice users. The product soon received much criticism by website owners claiming they were trying to externalize discussion. The White House website was annotated with topical jokes. Further issues arose when spammers began to leverage the product, and increased issues arose when cross-site scripting security vulnerabilities were exploited in the product.[4][5][6][7][1]

A significant campaign Say No to Third Voice (SNTTV or Say No to TV) was raised against Third Voice.[8]


The company discontinued the product in April 2001.[9][2]


  1. ^ a b c d Tapscott, Don (September 27, 1999). "Will Third Voice turn your website into a voodoo doll?". Computer Weekly. IDG. p. 32. ISSN 0010-4841.
  2. ^ a b Arrington, Michael (October 24, 2005). "Annotating Your Web with Stickis". Techcrunch. Archived from the original on August 2, 2018. Retrieved September 24, 2018.
  3. ^ Gartner, John (May 17, 1999). "Readers speak with third voice". Wired. Retrieved September 17, 2018.
  4. ^ Smith, Tony (June 11, 1999). "Third Voice slammed for 'defacing' Web sites". The Register. Retrieved September 15, 2012.
  5. ^ Oakes, Chris (July 9, 1999). "Third Voice Rips Holes in the Web". Wired. Retrieved September 17, 2018.
  6. ^ "Third Voice Annotation Cross Site Scripting". VULDB. Retrieved September 17, 2018.
  7. ^ Margolis, Michael; Resnick, David (4 October 1999), "Third Voice: Vox Populi Vox Dei?", CYBRA - Lodz Regional Digital Library, archived from the original on 17 September 2018, retrieved 17 September 2018
  8. ^ "Say No to Third Voice". SNTTV. In its present form. Archived from the original on August 15, 2000.
  9. ^ Kumar, Aparna (April 4, 2001). "Third Voice Trails Off...". Wired. Retrieved September 15, 2012.