I think I already covered this, but: books, libraries, film, art history, depth psychology, noetic science, semiotics, photography, board games of every description, camping, sci-fi, music
Folks that don't take themselves too seriously. Or that do. Either one works.
Neutral Milk Hotel, Mississippi John Hurt, Interpol, Mars Volta, Le Tigre, Outkast, Daniel Johnston, Jay-Z, Son House, Iron & Wine, Wilco, Lightning Hopkins, Kanye, Velvet Underground, Arcade Fire, Muddy Waters, White Stripes, Modest Mouse, Townes Van Zandt, Death Cab, Calexico, Yo La Tengo, Nick Drake, Jonathan Richman, Sunny Day Real Estate, Spoon, etc.
A Clockwork Orange, Blade Runner, Memento, Breaking the Waves, Wild Strawberries, Garden State, Crumb, City of Lost Children, Heavenly Creatures, Arsenic & Old Lace, Antonia's Line, The Phantom of Liberty, many others - seriously, this could go novel-length.
The Daily Show
Grapes of Wrath, To Say Nothing of the Dog, The Butcher Boy, Bulfinch's Mythology, White Noise, Money