Speed is kind of an unnecessary genre because usually anything you'd classify as speed you could classify as heavy, power, thrash, or a combination of them, but you wouldn't call bands like Slayer or Kreator speed metal, but Holy Terror you might.
Black metal's not dead, it just moved to the US. Xasthur, Leviathan, Absu, Judas Iscariot, etc. Personally I don't like US black metal nearly as much as the old-school Norwegian variety, but other than Darkthrone's new punkish album I'm not a big fan of the stuff that's coming out of there now.
And yeah, I'm beginning to disagree with my own statement... but the point was that the US scene isn't as bad as everyone makes it seem.