I highly doubt that this is even remotely original (or that it isn't overdone), but I'm a n00b... I haven't seen it after a month or so of lurking... so sue me.
Black Metal:
Death Metal:
Melodic Death/Gothenburg:
Power Metal:
Progressive Metal:
Thrash Metal:
Doom Metal:
Symphonic Black Metal:
Nu Metal:
Industrial Metal:
Grindcore:
I'm aware that many consider Grindcore a sub-genre of punk rather than metal... *shrugs*
I probably forgot some sub-genres, so feel free to add some more.
My Responses
Black Metal: Gorgoroth
Death Metal: Morbid Angel
Melodic Death/Gothenburg: Soilwork
Power Metal: N/A
Progressive Metal: Opeth
Thrash Metal: The Crown (well... its death/trash)
Doom Metal: Katatonia, My Dying Bride, Anathema
Symphonic Black Metal: Eh... not sure
Nu Metal: Mudvayne
Industrial Metal: Not sure... Ministry, if they count.
Grindcore: Skinless or Cephalic Carnage

Black Metal:
Death Metal:
Melodic Death/Gothenburg:
Power Metal:
Progressive Metal:
Thrash Metal:
Doom Metal:
Symphonic Black Metal:
Nu Metal:
Industrial Metal:
Grindcore:
I'm aware that many consider Grindcore a sub-genre of punk rather than metal... *shrugs*

I probably forgot some sub-genres, so feel free to add some more.

My Responses
Black Metal: Gorgoroth
Death Metal: Morbid Angel
Melodic Death/Gothenburg: Soilwork
Power Metal: N/A
Progressive Metal: Opeth
Thrash Metal: The Crown (well... its death/trash)
Doom Metal: Katatonia, My Dying Bride, Anathema
Symphonic Black Metal: Eh... not sure
Nu Metal: Mudvayne
Industrial Metal: Not sure... Ministry, if they count.
Grindcore: Skinless or Cephalic Carnage