Evolution, awareness, altered states of consciousness, order/chaos, the female form, occult knowledge, sacred geometry, nature, psychology, philosophy, photography, music, and other different forms of art.
People that are interesting and who can think.
Led Zeppelin, Pink Floyd, King Crimson, Emerson Lake & Palmer, (EARLY) Genesis w/ Peter Gabriel, solo Gabriel as well, Yes, Jimi Hendrix, Frank Zappa, Tool, A Perfect Circle, Nine Inch Nails, Janes Addiction, Tenacious D, Mr. Bungle, Faith No More, Fantomas, Tomahawk, Peeping Tom, Kadda/Patton, Mike Patton, Devo, jesu, Melvins, Nirvana, Radiohead, Air, Meshuggah, Clutch, Isis, Opeth, Porcupine Tree, Blackfield, No-Man, Steven Wilson, Richard Barberieri, Brian Eno, Robert Fripp, Adrian Belew, Bill Bruford, Tony Levin, Trey Gunn, Pat Mastelotto, Roger Waters, Richard Wright, David Gilmour, Robert Plant, John Paul Jones, David Bowie, Bjork, Massive Attack, Tricky, The Cure, Nightmares on Wax, Kyuss, Queens of the Stone Age, Maudlin of the Well, Kayo Dot, Toby Driver, Boards of Canada, Richard D. James, Aphex Twin, Dj Shadow, Mu-ziq, Squarepusher, Medeski, Martin & Wood, Ulrich Schnaus, Autechre, Alias, Lustmord, Steven Roach, Pj Harvey, Tori Amos, Sigur Ross, Portishead, Sonic Youth, Mercury Rev, The Flaming Lips, Mogwai, Mum, Beck, Godspeed You Black Emperor, Peach, Type O Negative, Soundgarden, Alice in Chains, Primus, and Miles Davis are some of my favorites.
Alien, Altered States, Pi, 2001 Space Odyssey, A Clockwork Orange, Blade Runner, The Crow, Dune, Dark City, The Shining, Buffalo 66, Eternal Sunshine of the Spotless Mind, Stay, A Scanner Darkly, V for Vendetta, Edward Scissorhands, and Fear and Loathing in Las Vegas are some.
Other than Discovery channel, History channel, or any good Japanese animation I recommend turning off your television and/or giving it away. :)
Alex Grey, H.R. Giger, Terence McKenna, Timothy Leary, Frank Herbert, Carl Jung, John Crowley, Chuck Palahniuk, Bob Frissel, Drunvalo Melchizedek, Hunter S. Thompson, Jose Arguelles, Daniel Pinchbeck, and Aleister Crowley are some.
Bill Hicks, Alex Grey, H.R. Giger, Terence McKenna, Frank Zappa, Maynard James Keenan, Adam Jones, Justin Chancellor, Danny Carey, Steven Wilson, Mike Patton, Bruce Lee, and anyone else that can inspire others in a positive way.