I realise this may be a bit of a loose category, so let me try and explain.
I think I like "noisy" stuff. That is to say, I listen to a lot of instrumental stuff, and shoegazey stuff, and lo-i bits and pieces -(eg, Fuck Buttons, 65days, Sonic Youth, My Bloody Valentine, Crystal Castles, Sleigh Bells, Pains of Being Pure at Heart) but I guess none of these would be really classed as "noise" to a fan.
So where should I begin with going a bit deeper into the world of noise and experimental music? Spotify/youtube/myspace links would be lovely, ta.