Editing Breidbart Index (section)

{{short description|Most significant cancel index in Usenet}}
{{redirect|Breidbart|similarly named persons and entities|Breitbart}}

{{lead too short|date=January 2013}}
The '''Breidbart Index''', developed by Seth Breidbart, is the most significant ''cancel index'' in [[Usenet]].

A cancel index measures the dissemination intensity of substantively identical articles. If the index exceeds a threshold the articles are called [[newsgroup spam]]. They can then be removed using third party cancel controls.