I do some freelance writing about games, with one article published in The Escapist magazine a while back, and a few articles written for IndiePub:
What Is Indie?
Et Tu, Minecraft?
Redefining Video Games
Some other stuff I've done:
I kept a blog about my game work.
I made some art and animations.
I made a short film as part of a film production class. It's real 16mm film, which was an interesting experiment in limited technology. We had only 8 minutes of raw film to use (so everything is a first take) and couldn't see anything we shot until the film was developed a week later. Still, I like the final product! My film was a sort of creepy music video.