http://graphics.lcs.mit.edu/liveweb/webfan.jpg

A fan diagram can be used to display information about a collection of sequences of differing length.

In [http://graphics.lcs.mit.edu/liveweb/ LiveFan], this sort of diagram represents threads of discussion on a message board. 

Appears to be gone as of 2004 Jan. A search at http://graphics.lcs.mit.edu/liveweb/ for "liveweb" also turned up nothing. A search on Google turnedup the following article describing the project, though: http://smg.media.mit.edu/papers/Xiong/liveweb_sig99.pdf

So, what's a fan diagram?

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CategoryInformationVisualization