Threaded

While catching up on a mailing list recently, I was reminded yet again of my ongoing annoyance with the structure of online discussions. Many online forums and comment pages show posts one after another, in the order they were posted. This sort of linear structure (or lack of structure) becomes unwieldy for any but the smallest discussions. The author of a post may have introduced a new and interesting angle to the discussion, but you still have to wade through page after page of postings to see if there are any replies specifically directed to his post. (Here's a random example of a linear discussion forum -- 15 pages of one post after another!)