gaming:
-pen and paper; Gurps, Pathfinder, Strands of fate,
-computer; 4x, strategy, rpg, FPS, management games, old-school, etc.
artistic:
animation; Character animation, motion graphics,
modelling, unwrapping, rigging etc.
drawing, photoshop,
Programming; as3, c#, unity3d
Boring but important topics; Global politics + economic systems, "Freedom From x", bureaucracy vs anarchy, Governments vs Corporations.