Punk rock:
Refused
Strung Out
Rise Against
Raised Fist
Thrice
The Bled
Lagwagon
Nofx

heavy shit
pantera
slipknot
poison the well
Meshuggah
Mnemic
Burnt by the sun
Will Haven
Sepultura
Soulfly

hip-hop:
Classified
Swollen Members
Jedi Mind Tricks
Saigon
K-os
Atmosphere

classic rock
Foghat
Led Zeppelin
Lynyrd Skynyrd
Deep Purple
Cream
Clapton
Old Rolling Stones
Willie Nelson
Mountain
Jefferson Airplane
Bad Company

reggae-reggae dub
Sublime(of course)
Slightly Stoopid
Bob Marley
Peter Tosh
Willie Nelson-his new album "countryman" AMAZING reggae album with his classic country twang

That's what I like to listen to anyways. A whole mix of stuff. Peace.