Fantasy, primarily, though most kinds of fiction work for me. In my spare time I play videogames (mostly for the story element - really exited about Star Wars: The Old Republic for that reason) and read all the webcomics I possibly can. My favorites list is three times the length of my screen, and it's a pretty decent screen.
I also enjoy thinking up crazy things that someone with too much money and free time might actually do. My latest idea is to buy and renovate the Roman Colisseum and dedicate it to Smosh-style food battles, where people will compete with their favorite foods in various contests of my own twisted devising. You'd be amazed what can be done with a nacho hat...