I found a goofy activity for digital writing. It doesn't teach students a new style of writing, it just allows them to do a very traditional type of writing online. It's a version of Mad Libs called "Wacky Web Tales."
My students love it. They choose from about 50 possible stories, provide the required words, read what the computer comes up, and then share with friends. Students have called others over to their computers and cut and pasted onto their blogs to share.
Some students are even redoing ones they've done once with more appropriate or funnier word choices.