noun. A series of remarks posted by people in a public comment section of a blog that follow a conversational and topic related sequence.

Whilst used on blogs to describe related comments under a single blog article, this term is more specifically and accurately associated with on-line forums, many of which use a 'threaded' format that indents related digressions from the main 'conversation' in a branching manner, making it more clear to which previous comment a person it replying. Although some blog-forum hybrids also use this 'threaded' format within their public comments section, the term is more commonly associated with forums rather than blogs.

usage: "A blog article by Mike over on Cold Fury has sparked off an interesting thread with people arguing about the merits of private firearms ownership"