> EDIT: little tidbit, much like the online org-mode manual, judging by the typeface and the color of the hyperlinks, I bet this article itself was written in texmacs and exported to html.
Even more than the typeface and the hyperlink color, I found this to be a give away :P
"Figure 1. This article has been written in TeXmacs. The image shows the article being drafted and the management of the figures within the program."