For a really well put together interactive Encyclopeida of Metal music, in all it's guises from Hard Rock to all the offshoots of Black Metal and Death metal and all the stops between I cannot recommend a better spot than map of metal. If you are in to metal or any form of hard rock, go visit.
I ran into it today, courtesy of Popbitch and I could spend hours there.
You can start of with a Psychedelic classic such as this
The Nile Song - Pink Floyd
And end up at
Bible Basher - Deicide
With many a stop along the way. All good clean heavy metal fun.
