Other artist to be brought up for consideration (if only to be kept off the list!) 

Some artists that may need to be explicitly stated whether or not they belong on the list:

Deadsy
The Birthday Massacre
Deadstar Assembly
Within Temptation
 Voltaire
Cinema Strange (Speaking of which, what happened to their article?)
Murderdolls
Wednesday 13
The Dresden Dolls
Dead Inside the Chrysalis
Nine Inch Nails

No, I don't think that any of these belong on the list, but they will make excellent additions to the "Previously discussed artists" list.