Here are links to some of my favourite bands' homepages:

Anathema
Bruce Dickinson
Children of Bodom
Dimmu Borgir
Dream Theater
Edguy
Iced Earth
Iron Maiden
Halor
HammerFall
Helloween
Manowar
Metallica
Nightwish
Rammstein
Sepultura
Stratovarius
Tankcsapda
Therion
Tvangeste
Windir
Wisdom
...