Music, PC(software and hardware), video games, automobiles, movies...
Practically, anyone!
Audioslave, Van Halen, Metallica, Slipknot, Mudvayne, The Used, The Finch, Korn, Incubus, RHCP, Hoobastank, Dave Matthews Band, Neruda, Maryz Ark, LYSOSOME, Rivermaya, Greyhoundz, Cheese, Chicosci... Far too many to mention all... :)-- My Chemical Romance - Ghost of You -- Music Video Codes by FreeVideoCodes.com
Any program the cable company has to offer!
Bible... :) encyclopedia. dictionary.. haha!!
Guitar gods... Yeah!