Web Development, anything Japanese, Video Games, Role-Playing Games (yeah, I'm a tool. Whatever.), Martial Arts, Mixology, Cooking
People of similar interests. I'm always up to learning new things; so if you're a teacher of something and looking for a student, let me know.
Oldies (60's and 70's), Punk/Pop-punk (MxPx, NoFX, No Use For A Name), New Alternative (Linkin Park, Hoobastank), Neo-Swing (BBVD, RCR, Cherry Poppin' Daddies), J-Pop, some techno.
Anything tool-ish or fan-boy (LoTR, X-Men, Star Wars), most anime (no hentai. I'm a dork, but not a perv), I've seen a few romantic movies but only under duress (I love you too, honey), and any movie with explosions is only as good as the size of the "boom".
Cartoon Network, Comedy Central, Sci-Fi, Animal Planet, Discovery Channel
Mangas, Fantasy/Sci-Fi (Melanie Rawn is a personal favorite), Philosophy (currently reading "The D'oh of Homer"), anything trivia, anything comedy.
The last leaf on the tree.