From Fedora Project Wiki

This is totally a raw work-in-progress. Please feel free to grab the source and dive in. It's the product of a brainstorm between Luke Macken and Máirín Duffy on 16 Mar 2010.

Download Inkscape Source SVG (for all mockups)

Mockup 1: Thread View of Mailing list

Mockup 2: Overview of Mailing list