Henrik, would it be eligible for this site? Every month/issue, Decibel adds one record into their Hall of Fame, which they consider a guide to "extreme music's most important albums." I think it is overall the best list of metal, old and new, out there, although it doesn't fit the mold of usual lists. It isn't ranked, and it's everchanging (because new additions come in every month). So far, there are 71 entries.