“Spork lets you create HTML slideshow presentations easily. It comes with a sample slideshow. All you need is a text editor, a browser and a topic. Spork allows you create an entire slideshow by editing a single file called Spork.slides (by default). Each slide is created using a minimal markup language similar to the syntax used in Kwiki wikis.”
http://search.cpan.org/~ingy/Spork-0.20/lib/Spork.pm (last checked: 2010-03-28)